Question

Solve the problem.

Find (f + g)(-4) when f(x) = x + 4 and g(x) = x - 7.

Answer 1

(f+g)(x) = f(x)+g(x)


(f+g)(x) = (x + 4) + (x - 7)


(f+g)(x) = x + 4 + x - 7


(f+g)(x) = 2x - 3


(f+g)(-4) = 2(-4) - 3


(f+g)(-4) = -8 - 3


(f+g)(-4) = -11

Answer 2

argh you beat me, but yeah that's right