Question

Use the following function rule to find f(2). f(x) = –3 ( 5 ) x f(2) =

Answer 1

To find \( f(2) \) using the function rule \( f(x) = -3(5)^x \), you can substitute \( x = 2 \) into the equation.

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

Now calculate \( (5)^2 \):

\[
(5)^2 = 25
\]

Now substitute this back into the equation:

\[
f(2) = -3 \times 25
\]

Now multiply:

\[
f(2) = -75
\]

Thus, \( f(2) = -75 \).