Ok i'm having trouble doing a few problems. The instructions and problem are

*Use the Inverse Function Property to show that f and g are inverses of each other*

1. f(x) = (3 - x) / 4 , g(x) = 3 - 4x

2. f(x) = 1 / x , g(x) = 1 / x

These are only two problems but i'm having trouble figuring it out... help