22 Find the value for the function. Find f(-x) when f(x) = x over x2 +8 QUESTION 3 1. Find the value for the function. Find f(x + 1) when f(x) = x^2 - 4 over x + 4. Question 7 Find the value for the function. Find f(2x) when f(x) = square root of 9x^2 -.7x QUESTION 13 1. Find the value for the function. Find f(x + h) when f(x) = 4x + 9 over 3x+4 QUESTION 14 1. Find the domain of the function. f(x) = square root 23 - x . QUESTION 15 1. Find the domain of the function. h(x) = x-2 over x^3 - 64x