Question

Evaluate f(x)=-x^2+1 for x=-3

Answer 1

For this case we have a function of the form $y = f (x)$, where:

$f (x) = - x ^ 2 + 1$

We must evaluate the function for $x = -3$

Then we have to replace:

$f (-3) = - (- 3) ^ 2 + 1\\f (-3) = - 9 + 1$

Different signs are subtracted and the sign of the major is placed:

$f (-3) = - 8$

ANswer:

$f (-3) = - 8$