LNebrenderot LNebrenderot

21-01-2016
Mathematics

Answered

Given the function f(x) = x2 and k = –1, which of the following represents a function opening downward?

Af(x) + k
Bkf(x)
Cf(x + k)
Df(kx)

Verified Answer :

apologiabiology apologiabiology

22-01-2016

to reflect the function across the x axis, we must multiply the whole thing by -1
f(kx) is the answer to make the thing negative
so you should result with
f(x)=-x^2
basically the answer is D

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nestdvd nestdvd

10-01-2019

Answer:

I just got it wrong. The right answer is: kf(x)

Step-by-step explanation:

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