If f(x) and f^-1(x) are inverse functions of each other and f(x)=2x+5, what is f^-1(8)

Step-by-step explanation:

Given the function

First we have to find the inverse

Step 1: Put f(x)=y, the equation becomes

Step 2: Replace x to y and y to x, we get

Step 3: Solve for y and then replace it with

Now substitute x=8, we get

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

25/14 or 1.

step-by-step explanation:

the dots mean that it has infinitely more numbers behind it