Question

evaluate quadratic functions
score: 2/2 penalty: 0.25 off
question
given $f(x) = -x^2 - 10x$, find $f(-2)$
answer

Explanation:

Step1: Substitute $x=-2$ into function

$f(-2) = -(-2)^2 - 10(-2)$

Step2: Calculate squared term and products

$f(-2) = -(4) + 20$

Step3: Compute final value

$f(-2) = -4 + 20$

Answer:

16