Question

Which of the following correctly identifies the factor k for the vertical compression from the function f(x)=x3+2
to the function f(x)=1/4x^3 + 1/2
?(1 point)
Responses

k=4

k equals 4

k=2

k equals 2

k=1/4

k equals Start Fraction 1 over 4 End Fraction

k=0

k equals 0
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Answer 1

k = 1/4

Because (1/4)(x^3 + 2) = (1/4)x^3 + 1/2, so the vertical scale factor is 1/4 (a vertical compression by 1/4).