Answer:
The domain of f–1(x) is all real numbers and the range is all real numbers greater than 0.
Step-by-step explanation:
There can be no negative in a sqrt
so x+1 must be equal or greater then 0
x+1

0
x

-1
so all answers must be greater then or equal to -1
-1,0,1,2,3,4,5,6,7,8
(-1,infinity) is the domain
Step-by-step explanation:
The function translation / transformation rules: f (x) + b shifts the function b units upward. f (x) − b shifts the function b units downward. f (x + b) shifts the function b units to the left
63x+45x = 108x
You just multiply 3x by 21 and 15 to get 63x and 45x. You then add the like terms to get 108x.