Question

PLEASE HELP!!
let f(x)=x^2+7 and g(x)=x+2/x. find f o g -4
show work, please!

Answer 1

(fog)(-4)= 29/4

Step-by-step explanation:

g(x)=(x+2)/x if x is -4 like it says, we have:

g(x)= (-4+2)/-4 = -2/-4=1/2

f(x)=x^2+7 If we plug in 1/2 [g(-4)] for x:

(1/2)^2+7

1/4+7= 1/4 + 28/4= 29/4

Hope you get it!