Question

evaluate quadratic functions
score: 1/5 penalty: none
question
given $f(x) = -3x^2 - 3x$, find $f(-6)$
answer attempt 1 out of 2

Explanation:

Step1: Substitute $x=-6$ into $f(x)$

$f(-6) = -3(-6)^2 - 3(-6)$

Step2: Calculate the squared term

$(-6)^2 = 36$, so $-3(36) = -108$

Step3: Calculate the linear term

$-3(-6) = 18$

Step4: Sum the two results

$f(-6) = -108 + 18$

Answer:

$-90$