Question

Given f (x) = 2^x – 1 and g (x) = 3x – 4, find (f + g)(2).

Answer 1

(f+g)(2) = 5

Explanation:

(f+g)(2) means

f(2) + g(2)

Add the functions and substitute in 2 for the x.

2^2 - 1 + 3(2) - 4

Simplify.

4 - 1 + 6 - 4

3 + 6 - 4

9 - 4

5