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=0


k=14


k=4


k=2

Answer 1

k = 14.

Explanation: the x^3 coefficient goes from 1 to 14, so the graph is vertically scaled by a factor of 14 (actually a vertical stretch, not a compression).