Question
If f left parenthesis x right parenthesis equals 4 x squared minus 4, find f left parenthesis negative 4 right parenthesis.
Question content area bottom
Part 1
f left parenthesis negative 4 right parenthesisequals
enter your response here
Question content area bottom
Part 1
f left parenthesis negative 4 right parenthesisequals
enter your response here
Answers
GPT-4o mini
To find \( f(-4) \) for the function \( f(x) = 4x^2 - 4 \), we will substitute \(-4\) for \( x \) in the function.
\[
f(-4) = 4(-4)^2 - 4
\]
Now, calculate \((-4)^2\):
\[
(-4)^2 = 16
\]
Now substitute that back into the equation:
\[
f(-4) = 4 \times 16 - 4
\]
Now calculate \(4 \times 16\):
\[
4 \times 16 = 64
\]
Now substitute that into the equation:
\[
f(-4) = 64 - 4
\]
Finally, calculate \(64 - 4\):
\[
64 - 4 = 60
\]
Thus,
\[
f(-4) = 60
\]
So, the final answer is:
\[
\boxed{60}
\]
\[
f(-4) = 4(-4)^2 - 4
\]
Now, calculate \((-4)^2\):
\[
(-4)^2 = 16
\]
Now substitute that back into the equation:
\[
f(-4) = 4 \times 16 - 4
\]
Now calculate \(4 \times 16\):
\[
4 \times 16 = 64
\]
Now substitute that into the equation:
\[
f(-4) = 64 - 4
\]
Finally, calculate \(64 - 4\):
\[
64 - 4 = 60
\]
Thus,
\[
f(-4) = 60
\]
So, the final answer is:
\[
\boxed{60}
\]