Question

use the following function rule to find f(144).
f(x) = 3 + \sqrt{x}
f(144) = \square

Explanation:

Step1: Substitute x=144 into f(x)

$f(144) = 3 + \sqrt{144}$

Step2: Calculate square root of 144

$\sqrt{144} = 12$

Step3: Add the constant term

$3 + 12 = 15$

Answer:

15