Find the following functions f(x)=x^2-1 and g(x)=2x+11 determine the following (f of g)(-4)
To find (f of g)(-4), we need to substitute -4 into the function g(x), and then substitute the result into the function f(x).
First, we substitute -4 into g(x):
g(x) = 2x + 11
g(-4) = 2(-4) + 11
g(-4) = -8 + 11
g(-4) = 3
Now, we substitute the result into f(x):
f(x) = x^2 - 1
f(3) = (3)^2 - 1
f(3) = 9 - 1
f(3) = 8
So, (f of g)(-4) = 8.