Answer:
f(x) = -8 when x= 3
Step-by-step explanation:
Given f(x) = -x² + 1
It is required to find f(x) when x = 3
So, we need to substitute with x =3 at the function f(x)
at x = 3
f(x) = - 3² + 1 = - 9 + 1 = -8
So, at x = 3 ⇒ f(x) = -8
see the attached figure.
