Question

use the following function rule to find f(5).
f(x) = 3x²
f(5) =

Explanation:

Step1: Substitute x=5 into function

$f(5) = 3(5)^2$

Step2: Calculate the square term

$5^2 = 25$

Step3: Multiply by the coefficient

$3 \times 25 = 75$

Answer:

75