Question

A function is shown.



What is the value of `f\left(-4\right)?` the function is f(x) = 10 - 4x

Answer 1

A function is shown.



What is the value of `f\left(5\right)?` the function is f(x) = -3 + 8x^2

Answer 2

To find the value of \( f(-4) \) for the function \( f(x) = 10 - 4x \), we substitute \( -4 \) for \( x \) in the function:

\[
f(-4) = 10 - 4(-4)
\]

Next, we calculate \( 4(-4) \):

\[
4(-4) = -16
\]

Now substitute back into the equation:

\[
f(-4) = 10 + 16
\]

Finally, calculate the sum:

\[
f(-4) = 26
\]

Thus, the value of \( f(-4) \) is \( \boxed{26} \).

Answer 3

To find the value of \( f(5) \) for the function \( f(x) = -3 + 8x^2 \), we substitute \( 5 \) for \( x \) in the function:

\[
f(5) = -3 + 8(5^2)
\]

First, calculate \( 5^2 \):

\[
5^2 = 25
\]

Next, substitute that value back into the equation:

\[
f(5) = -3 + 8(25)
\]

Now, calculate \( 8(25) \):

\[
8(25) = 200
\]

Now, substitute this value back into the equation:

\[
f(5) = -3 + 200
\]

Finally, calculate the sum:

\[
f(5) = 197
\]

Thus, the value of \( f(5) \) is \( \boxed{197} \).