To find (f o g)(-5), first we need to find g(-5) and then apply f to the result.
g(x) = x^2 + x + 2
g(-5) = (-5)^2 + (-5) + 2
g(-5) = 25 - 5 + 2
g(-5) = 22
Now, apply f to g(-5):
f(22) = 4(22) + 8
f(22) = 88
So, (f o g)(-5) = 88.
Therefore, the correct answer is 88.
given f (x) = 4x+8 and g(x) = x^2 +^2 + x; find (f o g) (-5)
-15
65
20
88
1 answer