Question

Given the function y=f(x) what transformation occurs if:

A) y is replaced with 2y
B) x is replaced with 2x

Answer 1

A) 2y = f(x) ⇒ y =
`(1)/(2)`f(x) → This is a vertical shrink by a factor of
`(1)/(2)`

B) y = f(2x) → This is a horizontal shrink by a factor of
`(1)/(2)`