Question

question
given $f(x) = -x^2 + 5x - 18$, find $f(-3)$

Explanation:

Step1: Substitute x=-3 into f(x)

$f(-3) = -(-3)^2 + 5(-3) - 18$

Step2: Calculate each term

$-(-3)^2 = -9$, $5(-3) = -15$

Step3: Sum the terms

$-9 -15 -18 = -36$

Answer:

-36