Answer:
f(g(4)) = 9
Step-by-step explanation:
f(x) = x − 7
g(x) = x²
To find f(g(4)) we must first find f(g(x)).
To find f(g(x)) substitute g(x) into f(x) that's for every x in f (x) replace it with g(x)
That's
f(g(x)) = x² - 7
To find f(g(4)) substitute the value of x that's 4 into f(g(x)) that's replace every x in f(g(x)) by 4
That's
f(g(4)) = 4² - 7
= 16 - 7
We have the final answer as
f(g(4)) = 9
Hope this helps you
