Question

Let f(x) = -2x - 7 and g(x) = -4x + 6. Find. (F o G) (-5)

26


3


–59


–6

Answer 1

-59

Explanation:

f(x) = -2x - 7 and g(x) = -4x + 6.

f(g(x)) =

Replace x in the function f(x) with g(x)

= -2(-4x+6) -7

= 8x -12 -7

= 8x - 19

Let x = -5

f(g(-5) = 8(-5) -19

= -40 -19

= -59