5.1 #1-2 and NR #1

1. Find the sum of f(x) and g (x) if f(x) = 2x2 + 3x - 4 and g(x) = x+ 3. A. 2x2 + 2x - 7 B . 2x2 + 2x - 1 C. 2x2 + 4x - 7 D. 2x2 + 4x - 1 Hint: Collect like terms. 2. Find the value of h(5), where h(x) = f(x) - 8(x), f(x) = Vx + 3, and g(x) = 2/x-1. A. 15 -4 B. -15+2 C. 15-2 D. -15+4 Hint: Collect like terms, then substitute x = 5 into the resulting function. Numerical Response Determine the value of P(5 ), to the nearest tenth, where P(x) = ( )(x), f(x) = 1 -2x, 1. 8 (x ) = 12x+ 3, and h(x) = x -2x-5. Hint: Combine the functions, then substitute the value of 5 for x