10. Given f(x) = x2 - 4 and g(x) = 3x + 1, find the functions listed below. Combine any like terms, simplify if possible. (2 points each) a. (f + g) (x) b. (=(x ); c. (fog) (x). 1 1. Find the algebraic expression for the difference quotient for f (x) = 2x2 - 3x + 1. Note: the difference quotient for the function f(x) is (6 points) h 12. Find the equation of variation where y varies directly as the cube-root of x and indirectly as the square of z and where y = 3.0 when x = 5.0 and z = 2.0. (6 points)