Question

Find g^-1(5): g(x) =2x+2 over 4 Please helppp!!!

Answer 1

Finding the inverse of an equation is fairly simple, and from there, it’s a matter of plugging in the desired input.

First, the inverse. Substitute x for y in the original equation and solve for y again to get it in the proper form.
y = (2x + 2)/4
x = (2y + 2)/4
4x = 2y + 2
4x - 2 = 2y
2x - 1 = y

Now, you can just plug in 5 to get the answer.
2(5) - 1 = 9