Question

If f(x) = V and g(x) = x2 – 7, find (gºf)(3).

Answer 1

(g * f) (3) = 2

Explanation:

• Here, it is asked us to find the function of a function, where f(x) and g(x) are two different functions, we are asked to solve the combined equation of these two functions.
• For these, first we need to find g(f(x)) then you can find the answer for the given equations
• g ( f(x) ) = g (V), it is given that f(x) = V, so we just substituted in f(x) position.

Now, we need to (g (V)) (3) =
`V^(2) - 7 = 3^(2) - 7 = 9 - 7 = 2`

Hence, the answer to function of function is 2