1) f(x) + g(x) = 10x + (-8) = 10x - 8
2) (f - g)(x) = 10x - (-8) = 10x + 8
3) (g · h)(x) = (-8)(-10) = 80
4) (f/g)(x) = 10x / (-8) = -5x/4
5) (h - g)(x) = -10 - (-8) = -2
6) (f · g)(-1) = 10(-1) * (-8) = (-10)(-8) = 80
7) (f + g)(x) = (6x + 4) + (-6) = 6x - 2
8) (f - g)(x) = (6x + 4) - (-6) = 6x + 10
9) (f · g)(x) = (6x + 4)(-6) = -36x - 24
10) (f/g)(x) = (6x + 4) / (-6) = -x - 2/3
11) (h - g)(3) = (-2) - (-6) = 4
12) (f · g)(-2) = [6(-2) + 4] * [-6] = [-12 + 4] * [-6] = [-8] * [-6] = 48
13) (f + g)(x) = x² + 15
14) (f - g)(x) = x² - 15
15) (f · g)(x) = x² * 15 = 15x²
16) (f/g)(x) = x² / 15
17) (h + j)(0) = 5 + √0 = 5 + 0 = 5
18) (f · h)(x) = x² * 5 = 5x²
Parent Tip: Review the logic above to help your child master the concept of function operations and composition worksheet.
