the function f(r) gives the area a circle with radius r. It can be written in the equation form as f(r) = 3.14r^2. What is f(4)? Round your answer to the nearest hundredth. (Give two decimal places & NO labels.)

Answer 1

To find \( f(4) \), we substitute \( r = 4 \) into the function \( f(r) = 3.14r^2 \).

Calculating \( f(4) \):

\[ f(4) = 3.14 \times (4^2) = 3.14 \times 16 = 50.24 \]

So, the answer is:

50.24