Can someone help? need to find the a and b for this function. Anything helps!! [closed]Need this Function ExplainedNeed a function for the following…Wrong implementation of functionIf A is a countable set, and B is an uncountable set, then why A intersect B is a countable set?Typo in a calculus bookCan one solve for $x$ in the equation $8^x=16x$Find z^3 give a defined functionFind the largest possible domain and the largest possible range of $F(x)$Find the value of differentiated functionLooking for a function that gives value of 0 to 1 with input of 0 to 1

Is every set a filtered colimit of finite sets?

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Can someone help? need to find the a and b for this function. Anything helps!! [closed]


Need this Function ExplainedNeed a function for the following…Wrong implementation of functionIf A is a countable set, and B is an uncountable set, then why A intersect B is a countable set?Typo in a calculus bookCan one solve for $x$ in the equation $8^x=16x$Find z^3 give a defined functionFind the largest possible domain and the largest possible range of $F(x)$Find the value of differentiated functionLooking for a function that gives value of 0 to 1 with input of 0 to 1













-1












$begingroup$


enter image description here
Function is $f(x)= ax^4-25x^3+2x^2+25x+b $
it passes through (7,E) E= 1296 and there is a zero of -1










share|cite|improve this question











$endgroup$



closed as off-topic by Shailesh, dantopa, Strants, John Douma, Parcly Taxel Mar 26 at 3:26


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Shailesh, dantopa, Strants, John Douma, Parcly Taxel
If this question can be reworded to fit the rules in the help center, please edit the question.











  • 3




    $begingroup$
    Please do not use pictures for critical portions of your post. Pictures may not be legible, cannot be searched and are not view-able to some, such as those who use screen readers.
    $endgroup$
    – Brian
    Mar 22 at 14:32










  • $begingroup$
    Welcome to stackexchange. When you edit the question to ask it directly rather than with a hard to read image, be sure to tell us what you tried and where you are stuck. Please use mathjax: math.meta.stackexchange.com/questions/5020/…
    $endgroup$
    – Ethan Bolker
    Mar 22 at 14:35










  • $begingroup$
    @EnriqueRodriguez Please add the function and your work into your question. If you show your effort appropriately, it is more likely that somebody will also put his/her effort into providing you some help.
    $endgroup$
    – Ertxiem
    Mar 22 at 14:42










  • $begingroup$
    @Ertxiem is this better?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:22










  • $begingroup$
    @Brian i added the function is this better?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:23















-1












$begingroup$


enter image description here
Function is $f(x)= ax^4-25x^3+2x^2+25x+b $
it passes through (7,E) E= 1296 and there is a zero of -1










share|cite|improve this question











$endgroup$



closed as off-topic by Shailesh, dantopa, Strants, John Douma, Parcly Taxel Mar 26 at 3:26


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Shailesh, dantopa, Strants, John Douma, Parcly Taxel
If this question can be reworded to fit the rules in the help center, please edit the question.











  • 3




    $begingroup$
    Please do not use pictures for critical portions of your post. Pictures may not be legible, cannot be searched and are not view-able to some, such as those who use screen readers.
    $endgroup$
    – Brian
    Mar 22 at 14:32










  • $begingroup$
    Welcome to stackexchange. When you edit the question to ask it directly rather than with a hard to read image, be sure to tell us what you tried and where you are stuck. Please use mathjax: math.meta.stackexchange.com/questions/5020/…
    $endgroup$
    – Ethan Bolker
    Mar 22 at 14:35










  • $begingroup$
    @EnriqueRodriguez Please add the function and your work into your question. If you show your effort appropriately, it is more likely that somebody will also put his/her effort into providing you some help.
    $endgroup$
    – Ertxiem
    Mar 22 at 14:42










  • $begingroup$
    @Ertxiem is this better?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:22










  • $begingroup$
    @Brian i added the function is this better?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:23













-1












-1








-1





$begingroup$


enter image description here
Function is $f(x)= ax^4-25x^3+2x^2+25x+b $
it passes through (7,E) E= 1296 and there is a zero of -1










share|cite|improve this question











$endgroup$




enter image description here
Function is $f(x)= ax^4-25x^3+2x^2+25x+b $
it passes through (7,E) E= 1296 and there is a zero of -1







functional-analysis analysis functions exponential-function advice






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Mar 22 at 15:50









CiaPan

10.3k11248




10.3k11248










asked Mar 22 at 14:29









Enrique RodriguezEnrique Rodriguez

32




32




closed as off-topic by Shailesh, dantopa, Strants, John Douma, Parcly Taxel Mar 26 at 3:26


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Shailesh, dantopa, Strants, John Douma, Parcly Taxel
If this question can be reworded to fit the rules in the help center, please edit the question.







closed as off-topic by Shailesh, dantopa, Strants, John Douma, Parcly Taxel Mar 26 at 3:26


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Shailesh, dantopa, Strants, John Douma, Parcly Taxel
If this question can be reworded to fit the rules in the help center, please edit the question.







  • 3




    $begingroup$
    Please do not use pictures for critical portions of your post. Pictures may not be legible, cannot be searched and are not view-able to some, such as those who use screen readers.
    $endgroup$
    – Brian
    Mar 22 at 14:32










  • $begingroup$
    Welcome to stackexchange. When you edit the question to ask it directly rather than with a hard to read image, be sure to tell us what you tried and where you are stuck. Please use mathjax: math.meta.stackexchange.com/questions/5020/…
    $endgroup$
    – Ethan Bolker
    Mar 22 at 14:35










  • $begingroup$
    @EnriqueRodriguez Please add the function and your work into your question. If you show your effort appropriately, it is more likely that somebody will also put his/her effort into providing you some help.
    $endgroup$
    – Ertxiem
    Mar 22 at 14:42










  • $begingroup$
    @Ertxiem is this better?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:22










  • $begingroup$
    @Brian i added the function is this better?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:23












  • 3




    $begingroup$
    Please do not use pictures for critical portions of your post. Pictures may not be legible, cannot be searched and are not view-able to some, such as those who use screen readers.
    $endgroup$
    – Brian
    Mar 22 at 14:32










  • $begingroup$
    Welcome to stackexchange. When you edit the question to ask it directly rather than with a hard to read image, be sure to tell us what you tried and where you are stuck. Please use mathjax: math.meta.stackexchange.com/questions/5020/…
    $endgroup$
    – Ethan Bolker
    Mar 22 at 14:35










  • $begingroup$
    @EnriqueRodriguez Please add the function and your work into your question. If you show your effort appropriately, it is more likely that somebody will also put his/her effort into providing you some help.
    $endgroup$
    – Ertxiem
    Mar 22 at 14:42










  • $begingroup$
    @Ertxiem is this better?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:22










  • $begingroup$
    @Brian i added the function is this better?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:23







3




3




$begingroup$
Please do not use pictures for critical portions of your post. Pictures may not be legible, cannot be searched and are not view-able to some, such as those who use screen readers.
$endgroup$
– Brian
Mar 22 at 14:32




$begingroup$
Please do not use pictures for critical portions of your post. Pictures may not be legible, cannot be searched and are not view-able to some, such as those who use screen readers.
$endgroup$
– Brian
Mar 22 at 14:32












$begingroup$
Welcome to stackexchange. When you edit the question to ask it directly rather than with a hard to read image, be sure to tell us what you tried and where you are stuck. Please use mathjax: math.meta.stackexchange.com/questions/5020/…
$endgroup$
– Ethan Bolker
Mar 22 at 14:35




$begingroup$
Welcome to stackexchange. When you edit the question to ask it directly rather than with a hard to read image, be sure to tell us what you tried and where you are stuck. Please use mathjax: math.meta.stackexchange.com/questions/5020/…
$endgroup$
– Ethan Bolker
Mar 22 at 14:35












$begingroup$
@EnriqueRodriguez Please add the function and your work into your question. If you show your effort appropriately, it is more likely that somebody will also put his/her effort into providing you some help.
$endgroup$
– Ertxiem
Mar 22 at 14:42




$begingroup$
@EnriqueRodriguez Please add the function and your work into your question. If you show your effort appropriately, it is more likely that somebody will also put his/her effort into providing you some help.
$endgroup$
– Ertxiem
Mar 22 at 14:42












$begingroup$
@Ertxiem is this better?
$endgroup$
– Enrique Rodriguez
Mar 22 at 15:22




$begingroup$
@Ertxiem is this better?
$endgroup$
– Enrique Rodriguez
Mar 22 at 15:22












$begingroup$
@Brian i added the function is this better?
$endgroup$
– Enrique Rodriguez
Mar 22 at 15:23




$begingroup$
@Brian i added the function is this better?
$endgroup$
– Enrique Rodriguez
Mar 22 at 15:23










1 Answer
1






active

oldest

votes


















0












$begingroup$

You can find $a$ and $b$ as a system of equations:



We know that for $x=7$, $f(x)=1296$, this will be one equation on $a$ and $b$.



And for $x=-1$, $f(x) = 0$, this will give another equation on $a$ and $b$.



Can you write down the equations and solve the system or do you need more help?



Edit: The equations will be:
$$begincases
a times 7^4 - 25 times 7^3 + 2 times 7^2+25 times 7 + b = 1296 \
a times (-1)^4 - 25 times (-1)^3 + 2 times (-1)^2+25 times (-1) + b = 0
endcases$$



Edit 2: If you subtract the first equation from the second you get an equation without $b$:
$$a times (7^4-(-1)^4) - 25 times (7^3-(-1)^3) + 2 times (7^2-(-1)^2) + 25 times (7-(-1)) = 1296 .$$
I was a bit lazy and I did not compute the powers of $7$. :)



With this last equation, you'll be able to compute the value of $a$. To obtain the value of $b$ you can use one of the other equations (I suggest using the one with the smaller numbers).






share|cite|improve this answer











$endgroup$












  • $begingroup$
    this helps could you help me a little more?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:32











  • $begingroup$
    just with the equations
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:40










  • $begingroup$
    still a little confused first time doing this! how do i get the a and b out of this 2 equations? cause a and b are still both in there? i can slove when its one variable but not 2.
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 16:01










  • $begingroup$
    @EnriqueRodriguez: I added another step in the solution. I believe that you can now compute the final result on your own.
    $endgroup$
    – Ertxiem
    Mar 22 at 19:30

















1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0












$begingroup$

You can find $a$ and $b$ as a system of equations:



We know that for $x=7$, $f(x)=1296$, this will be one equation on $a$ and $b$.



And for $x=-1$, $f(x) = 0$, this will give another equation on $a$ and $b$.



Can you write down the equations and solve the system or do you need more help?



Edit: The equations will be:
$$begincases
a times 7^4 - 25 times 7^3 + 2 times 7^2+25 times 7 + b = 1296 \
a times (-1)^4 - 25 times (-1)^3 + 2 times (-1)^2+25 times (-1) + b = 0
endcases$$



Edit 2: If you subtract the first equation from the second you get an equation without $b$:
$$a times (7^4-(-1)^4) - 25 times (7^3-(-1)^3) + 2 times (7^2-(-1)^2) + 25 times (7-(-1)) = 1296 .$$
I was a bit lazy and I did not compute the powers of $7$. :)



With this last equation, you'll be able to compute the value of $a$. To obtain the value of $b$ you can use one of the other equations (I suggest using the one with the smaller numbers).






share|cite|improve this answer











$endgroup$












  • $begingroup$
    this helps could you help me a little more?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:32











  • $begingroup$
    just with the equations
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:40










  • $begingroup$
    still a little confused first time doing this! how do i get the a and b out of this 2 equations? cause a and b are still both in there? i can slove when its one variable but not 2.
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 16:01










  • $begingroup$
    @EnriqueRodriguez: I added another step in the solution. I believe that you can now compute the final result on your own.
    $endgroup$
    – Ertxiem
    Mar 22 at 19:30















0












$begingroup$

You can find $a$ and $b$ as a system of equations:



We know that for $x=7$, $f(x)=1296$, this will be one equation on $a$ and $b$.



And for $x=-1$, $f(x) = 0$, this will give another equation on $a$ and $b$.



Can you write down the equations and solve the system or do you need more help?



Edit: The equations will be:
$$begincases
a times 7^4 - 25 times 7^3 + 2 times 7^2+25 times 7 + b = 1296 \
a times (-1)^4 - 25 times (-1)^3 + 2 times (-1)^2+25 times (-1) + b = 0
endcases$$



Edit 2: If you subtract the first equation from the second you get an equation without $b$:
$$a times (7^4-(-1)^4) - 25 times (7^3-(-1)^3) + 2 times (7^2-(-1)^2) + 25 times (7-(-1)) = 1296 .$$
I was a bit lazy and I did not compute the powers of $7$. :)



With this last equation, you'll be able to compute the value of $a$. To obtain the value of $b$ you can use one of the other equations (I suggest using the one with the smaller numbers).






share|cite|improve this answer











$endgroup$












  • $begingroup$
    this helps could you help me a little more?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:32











  • $begingroup$
    just with the equations
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:40










  • $begingroup$
    still a little confused first time doing this! how do i get the a and b out of this 2 equations? cause a and b are still both in there? i can slove when its one variable but not 2.
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 16:01










  • $begingroup$
    @EnriqueRodriguez: I added another step in the solution. I believe that you can now compute the final result on your own.
    $endgroup$
    – Ertxiem
    Mar 22 at 19:30













0












0








0





$begingroup$

You can find $a$ and $b$ as a system of equations:



We know that for $x=7$, $f(x)=1296$, this will be one equation on $a$ and $b$.



And for $x=-1$, $f(x) = 0$, this will give another equation on $a$ and $b$.



Can you write down the equations and solve the system or do you need more help?



Edit: The equations will be:
$$begincases
a times 7^4 - 25 times 7^3 + 2 times 7^2+25 times 7 + b = 1296 \
a times (-1)^4 - 25 times (-1)^3 + 2 times (-1)^2+25 times (-1) + b = 0
endcases$$



Edit 2: If you subtract the first equation from the second you get an equation without $b$:
$$a times (7^4-(-1)^4) - 25 times (7^3-(-1)^3) + 2 times (7^2-(-1)^2) + 25 times (7-(-1)) = 1296 .$$
I was a bit lazy and I did not compute the powers of $7$. :)



With this last equation, you'll be able to compute the value of $a$. To obtain the value of $b$ you can use one of the other equations (I suggest using the one with the smaller numbers).






share|cite|improve this answer











$endgroup$



You can find $a$ and $b$ as a system of equations:



We know that for $x=7$, $f(x)=1296$, this will be one equation on $a$ and $b$.



And for $x=-1$, $f(x) = 0$, this will give another equation on $a$ and $b$.



Can you write down the equations and solve the system or do you need more help?



Edit: The equations will be:
$$begincases
a times 7^4 - 25 times 7^3 + 2 times 7^2+25 times 7 + b = 1296 \
a times (-1)^4 - 25 times (-1)^3 + 2 times (-1)^2+25 times (-1) + b = 0
endcases$$



Edit 2: If you subtract the first equation from the second you get an equation without $b$:
$$a times (7^4-(-1)^4) - 25 times (7^3-(-1)^3) + 2 times (7^2-(-1)^2) + 25 times (7-(-1)) = 1296 .$$
I was a bit lazy and I did not compute the powers of $7$. :)



With this last equation, you'll be able to compute the value of $a$. To obtain the value of $b$ you can use one of the other equations (I suggest using the one with the smaller numbers).







share|cite|improve this answer














share|cite|improve this answer



share|cite|improve this answer








edited Mar 22 at 19:29

























answered Mar 22 at 15:28









ErtxiemErtxiem

671112




671112











  • $begingroup$
    this helps could you help me a little more?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:32











  • $begingroup$
    just with the equations
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:40










  • $begingroup$
    still a little confused first time doing this! how do i get the a and b out of this 2 equations? cause a and b are still both in there? i can slove when its one variable but not 2.
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 16:01










  • $begingroup$
    @EnriqueRodriguez: I added another step in the solution. I believe that you can now compute the final result on your own.
    $endgroup$
    – Ertxiem
    Mar 22 at 19:30
















  • $begingroup$
    this helps could you help me a little more?
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:32











  • $begingroup$
    just with the equations
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 15:40










  • $begingroup$
    still a little confused first time doing this! how do i get the a and b out of this 2 equations? cause a and b are still both in there? i can slove when its one variable but not 2.
    $endgroup$
    – Enrique Rodriguez
    Mar 22 at 16:01










  • $begingroup$
    @EnriqueRodriguez: I added another step in the solution. I believe that you can now compute the final result on your own.
    $endgroup$
    – Ertxiem
    Mar 22 at 19:30















$begingroup$
this helps could you help me a little more?
$endgroup$
– Enrique Rodriguez
Mar 22 at 15:32





$begingroup$
this helps could you help me a little more?
$endgroup$
– Enrique Rodriguez
Mar 22 at 15:32













$begingroup$
just with the equations
$endgroup$
– Enrique Rodriguez
Mar 22 at 15:40




$begingroup$
just with the equations
$endgroup$
– Enrique Rodriguez
Mar 22 at 15:40












$begingroup$
still a little confused first time doing this! how do i get the a and b out of this 2 equations? cause a and b are still both in there? i can slove when its one variable but not 2.
$endgroup$
– Enrique Rodriguez
Mar 22 at 16:01




$begingroup$
still a little confused first time doing this! how do i get the a and b out of this 2 equations? cause a and b are still both in there? i can slove when its one variable but not 2.
$endgroup$
– Enrique Rodriguez
Mar 22 at 16:01












$begingroup$
@EnriqueRodriguez: I added another step in the solution. I believe that you can now compute the final result on your own.
$endgroup$
– Ertxiem
Mar 22 at 19:30




$begingroup$
@EnriqueRodriguez: I added another step in the solution. I believe that you can now compute the final result on your own.
$endgroup$
– Ertxiem
Mar 22 at 19:30



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Kathakali Contents Etymology and nomenclature History Repertoire Songs and musical instruments Traditional plays Styles: Sampradayam Training centers and awards Relationship to other dance forms See also Notes References External links Navigation menueThe Illustrated Encyclopedia of Hinduism: A-MSouth Asian Folklore: An EncyclopediaRoutledge International Encyclopedia of Women: Global Women's Issues and KnowledgeKathakali Dance-drama: Where Gods and Demons Come to PlayKathakali Dance-drama: Where Gods and Demons Come to PlayKathakali Dance-drama: Where Gods and Demons Come to Play10.1353/atj.2005.0004The Illustrated Encyclopedia of Hinduism: A-MEncyclopedia of HinduismKathakali Dance-drama: Where Gods and Demons Come to PlaySonic Liturgy: Ritual and Music in Hindu Tradition"The Mirror of Gesture"Kathakali Dance-drama: Where Gods and Demons Come to Play"Kathakali"Indian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceMedieval Indian Literature: An AnthologyThe Oxford Companion to Indian TheatreSouth Asian Folklore: An Encyclopedia : Afghanistan, Bangladesh, India, Nepal, Pakistan, Sri LankaThe Rise of Performance Studies: Rethinking Richard Schechner's Broad SpectrumIndian Theatre: Traditions of PerformanceModern Asian Theatre and Performance 1900-2000Critical Theory and PerformanceBetween Theater and AnthropologyKathakali603847011Indian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceBetween Theater and AnthropologyBetween Theater and AnthropologyNambeesan Smaraka AwardsArchivedThe Cambridge Guide to TheatreRoutledge International Encyclopedia of Women: Global Women's Issues and KnowledgeThe Garland Encyclopedia of World Music: South Asia : the Indian subcontinentThe Ethos of Noh: Actors and Their Art10.2307/1145740By Means of Performance: Intercultural Studies of Theatre and Ritual10.1017/s204912550000100xReconceiving the Renaissance: A Critical ReaderPerformance TheoryListening to Theatre: The Aural Dimension of Beijing Opera10.2307/1146013Kathakali: The Art of the Non-WorldlyOn KathakaliKathakali, the dance theatreThe Kathakali Complex: Performance & StructureKathakali Dance-Drama: Where Gods and Demons Come to Play10.1093/obo/9780195399318-0071Drama and Ritual of Early Hinduism"In the Shadow of Hollywood Orientalism: Authentic East Indian Dancing"10.1080/08949460490274013Sanskrit Play Production in Ancient IndiaIndian Music: History and StructureBharata, the Nāṭyaśāstra233639306Table of Contents2238067286469807Dance In Indian Painting10.2307/32047833204783Kathakali Dance-Theatre: A Visual Narrative of Sacred Indian MimeIndian Classical Dance: The Renaissance and BeyondKathakali: an indigenous art-form of Keralaeee

Method to test if a number is a perfect power? Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)Detecting perfect squares faster than by extracting square rooteffective way to get the integer sequence A181392 from oeisA rarely mentioned fact about perfect powersHow many numbers such $n$ are there that $n<100,lfloorsqrtn rfloor mid n$Check perfect squareness by modulo division against multiple basesFor what pair of integers $(a,b)$ is $3^a + 7^b$ a perfect square.Do there exist any positive integers $n$ such that $lfloore^nrfloor$ is a perfect power? What is the probability that one exists?finding perfect power factors of an integerProve that the sequence contains a perfect square for any natural number $m $ in the domain of $f$ .Counting Perfect Powers