Question

Which represents the inverse of the function f(x) = 4x?

Answer 1

y = x/4

Explanation:

y = 4x

x = 4y

y = x/4

Answer 2

The inverse is 1/4x

Explanation:

y = 4x

To find the inverse, exchange x and y

x = 4y

Solve for y

1/4 x = 4y/4

1/4x = y

The inverse is 1/4x = y