Question

What is the sum of f and g? f(x) =10-2x g(x)=7x+5

A. (F+g)(x)=5+5x
B. (F+g)(x)=5+9x
C. (F+g)(x)=15+5x
D. (F+g)(x)=15+9x

Answer 1

C

Explanation:

To find the sum of f and g then add the expressions f(x) and g(x).

f(x) + g(x)

10-2x + 7x+5

10+5x+5

15+5x

This means that (F+g)(x) = 15+5x.