review for final examination
score: 34/50 answered: 34/50
question 35
when $f(x) = 3x^2 - 4x + 5$, evaluate $f(-4)$
$f(-4) = $
question help: video

Question

review for final examination
score: 34/50  answered: 34/50
question 35
when $f(x) = 3x^2 - 4x + 5$, evaluate $f(-4)$
$f(-4) = $
question help:  video

Accepted Answer

# Explanation:
## Step1: Substitute $x = - 4$ into the function
$$
\begin{align*}
f(-4)&=3\times(-4)^{2}-4\times(-4)+5
\end{align*}
$$
## Step2: Calculate each term
- Calculate $(-4)^{2}$: $(-4)^{2}=16$, so $3\times(-4)^{2}=3\times16 = 48$
- Calculate $-4\times(-4)$: $-4\times(-4)=16$
$$
\begin{align*}
f(-4)&=48 + 16+5
\end{align*}
$$
## Step3: Sum up the terms
$$
\begin{align*}
f(-4)&=69
\end{align*}
$$
# Answer:
$69$

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

Step1: Substitute \(x = - 4\) into the function

Step2: Calculate each term

Step3: Sum up the terms

Answer: