Question

Find f(g(x)) if f(x) = 2x-5 and g(x) = 3x+4

a. 5x-1
b.6x-20
c.6x+3
d.5x+9

Answer 1

Put g(x) instead of x
f(x) = 2x - 5
f(g(x)) = 2(g(x)) - 5
f(g(x)) = 2(3x + 4) - 5
f(g(x)) = 6x + 8 - 5
f(g(x)) = 6x + 3

Option C)