anonymous
  • anonymous
Given the function f(x) = x2 and k = –3, which of the following represents a vertical shift?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
f(x) + k kf(x) f(x + k) f(kx)
SolomonZelman
  • SolomonZelman
when you are dealing with any function \(f(x)=x^w\), a vertical shift is: \(f(x)=x^w+c\) (shift up), OR \(f(x)+x^w-c\) (shift down).
SolomonZelman
  • SolomonZelman
does this help, or not?

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More answers

SolomonZelman
  • SolomonZelman
I mean \(fx)=x^w-c\) for the last equation ...
SolomonZelman
  • SolomonZelman
btw, you don't need to know the value of the k to answer this question.
anonymous
  • anonymous
yes this helps.
SolomonZelman
  • SolomonZelman
Ok, and your answer is?
anonymous
  • anonymous
would it be d?
SolomonZelman
  • SolomonZelman
I guess it didn't help at all....
SolomonZelman
  • SolomonZelman
it seems as though you are guessing....
anonymous
  • anonymous
I'm trying to understand
anonymous
  • anonymous
okay wait would it be a?
anonymous
  • anonymous
im so bad at math sorry I'm really trying to get this
SolomonZelman
  • SolomonZelman
Say you have a function \(f(x)=x^w\) -------------------------------- \(f(x\cdot k)=(x\cdot k)^w\) that is just increasing the base, and gives you a different function. \(f(x)+c=x^w+c\) ~ shift up when c>0 ~ shift down when c<0. \(kf(x)=k(x)^w\) ~ you are stretching the function when k>1, ~ shrinking when 00
anonymous
  • anonymous
so it would be a
SolomonZelman
  • SolomonZelman
yes, A is the correct answer.
anonymous
  • anonymous
thank you! it was right.
SolomonZelman
  • SolomonZelman
:)

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