Question

Given that (9,2) is on the graph of f(x), find the corresponding point for the function f(-3/4x)

Answer 1

(- 12 , 2)

Explanation:

f(x) -> f(kx) |k| = |-3/4| = |- 0.75| = 0.75

0 < 0.75 < 1 , It's a horizontal stretch, (x,y) -> (x/k , y)

(9 , 2) -> (9 / (-3/4) , 2) -> (- 12 , 2)