Question
f(x)=-3x²+10, what is the value of f(-2)?
Select 1:
Question 3Answer
a.
-2
b.
46
c.
22
d.
-26
Select 1:
Question 3Answer
a.
-2
b.
46
c.
22
d.
-26
Answers
GPT-4o mini
To find \( f(-2) \) for the function \( f(x) = -3x^2 + 10 \), we substitute \(-2\) into the function:
\[
f(-2) = -3(-2)^2 + 10
\]
Calculating \((-2)^2\):
\[
(-2)^2 = 4
\]
Now substituting this value back into the equation:
\[
f(-2) = -3(4) + 10
\]
\[
= -12 + 10
\]
\[
= -2
\]
Therefore, the value of \( f(-2) \) is \(-2\).
The correct answer is:
**a. -2**
\[
f(-2) = -3(-2)^2 + 10
\]
Calculating \((-2)^2\):
\[
(-2)^2 = 4
\]
Now substituting this value back into the equation:
\[
f(-2) = -3(4) + 10
\]
\[
= -12 + 10
\]
\[
= -2
\]
Therefore, the value of \( f(-2) \) is \(-2\).
The correct answer is:
**a. -2**