Given f(x)=4x+8 and g(x)=x2+x; find (f ∘ g)(−5) (1 point) Responses 65 65 88 88 20 20 -15
To find (f ∘ g)(−5), we first need to find g(−5):
g(x) = x^2 + x
Therefore, g(-5) = (-5)^2 + (-5) = 25 - 5 = 20
Now, we can substitute g(-5) into f(x):
f(x) = 4x + 8
(f ∘ g)(−5) = f(g(-5)) = f(20) = 4(20) + 8
= 80 + 8
= 88
So, (f ∘ g)(−5) = 88