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)=14x3+12
?(1 point)

k=4


k=14


k=2


k=0

Answer 1

k = 14

Reason: the x^3 coefficient goes from 1 to 14, so the vertical scaling factor is 14 (a vertical stretch).