Question

What is the value of (g o f)(-3)
f(x)=4x+10; g(x)2x-5
(g o f)(-3) = {1}

Answer 1

-9

Explanation:

(gof)(-3) = g(f(-3) = g(-2) = -9

Or,

gof = g(f) = 2f-5 = 2(4x+10)-5 = 8x+15

so (gof)(-3) = -24+15 = -9