Question

What is the inverse of the function f(x) = x +3?

Answer 1

x - 3

Explanation:

f(x) = x + 3

y = x + 3

x = y - 3

Inverse is h(x) = x - 3

Answer 2

The inverse is x-3

Explanation:

y = x+3

To find the inverse, exchange x and y

x = y+3

Solve for y

x-3 = y+3-3

x-3 =y

The inverse is x-3