Question

Given a graph for the transformation of f(x)=f(kx), determine the k value

a
k=-1/3
b
k=1/3
c
k=-3
d
k=3

Answer 1

• B. k = 1/3

Explanation:

Compare any two points on same horizontal line.

The easy one is:

• f(-3) = g(-1) = - 3

Since g(x) = f(kx), substitute the x- coordinates to find the value of k:

• - 1 = k*(-3)
• k = - 1/ - 3
• k = 1/3

Correct choice is B