Question

Evaluate f(x) = -x squared +1 for x = -3

Answer 1

f(x) = -8 when x= 3

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.