Question

Find f(g(x)) when x=2 and f(x)= -x+4 and g(x) = -2x-3

Answer 1

f(g(x)) = 11

Explanation:

x=2 and g(x) = -2x-3 ⇒ g(2) = -2(2)-3 = -4 - 3 = -7

f(g(x)) and g(x) = -7 ⇒ f(g(x)) = f(-7)

f(x)= -x+4 ⇒ f(-7) = -(-7) + 4 = 7 + 4 = 11