CW 7.1 MATH 112 All solutions for CW must be in the form: Identify the problem (number and the direction) (-3% I if not). 1. Suppose that the functions f and g are defined for all numbers x as follow: Section 2.8 Example 1, 2, 3 f(x) = 3x2 + 4 g(x) = 3x - 5 r(x) = Vx+7 a) Write the expressions for (f + g)(x), b) (f* g) (x) , c) (r*g) (x ) d) (- ) ( x ). 2. Given f(x) = 3x2 + 4 g(x) = 3x - 5 r(x) = Vx +7 Find the domains of a ) (f + g)(x), b) (f*)(x) and (r*g)(x) c ) (2 ) ( x ) 3. Given f(x) = 3x2 + 4 g(x) = 3x - 5 r(x) = Vx +7 Evaluate al(f + 8) (-1), b) (f*@) (0) c) (r* g) (-5) 4. Suppose that the functions g and h are defined as follows: g(x) = 5x - 7 h (x) = (x -3)(x + 2) a) Find () (-3) b) Find all valuers that are not in the Domain of _ (or find the restrictions)