Question

F(x) = x + 8 and g(x) = -4x - 3, find (f-g)(x)

Answer 1

5x + 11

Explanation:

We are subtracting function g(x) from function f(x).

Write f(x) as is: f(x) = x + 8.

Then change all of the signs of g(x): -g(x) = 4x + 3.

Now combine like terms for the sum (f - g)(x) = x + 8 + 4x + 3. We get

(f - g)(x) = 5x + 11