1. If f(x) = |x| + 9 and g(x) = –6, which describes the value of (f + g)(x)?

2. If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (c*d)(x)?

Guest Mar 13, 2017

edited by
Guest
Mar 13, 2017

#1**+5 **

1. If f(x) = |x| + 9 and g(x) = –6, which describes the value of (f + g)(x)?

(f + g) (x) = f(x) + g(x) = [xl + 9 - 6 = lxl + 3

2. If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (c*d)(x)?

(c*d)(x) = c(x)*d(x) = [ 4x - 2] * [x^2 + 5x ] = 4x^3 + 20x^2 - 2x^2 - 10x =

4x^3 + 18x^2 - 10x

CPhill
Mar 13, 2017