Question

Use the following function rule to find f(3).

f(x) = 12 ( 5 )^x

Answer 1

To find \( f(3) \) using the function \( f(x) = 12(5)^x \), we simply substitute \( x \) with 3.

\[
f(3) = 12(5)^3
\]

Now, we calculate \( (5)^3 \):

\[
(5)^3 = 5 \times 5 \times 5 = 125
\]

Now substitute this value back into the function:

\[
f(3) = 12 \times 125
\]

Now we can calculate \( 12 \times 125 \):

\[
12 \times 125 = 1500
\]

Thus, the final value is:

\[
f(3) = 1500
\]