Question

Given f(x)=5x 5 and g(x)=6x 1 then what is (f g)(−8)) ?

Answer 1

f(x) = 5x+5
g(x) = 6x+1

Just add these functions to find (f+g)(x)

(f+g)(x)=5x+5+6x+1=11x+6

Then substitute -8 for "x" :

(f+g)(-8) = 11 * (-8) + 6 = -88 + 6 = -82

Greeting