Question

use the following function rule to find f(100).
f(x) = -4 - 12√x
f(100) = \boxed{}

Explanation:

Step1: Substitute $x=100$ into $f(x)$

$f(100) = -4 - 12\sqrt{100}$

Step2: Calculate the square root

$\sqrt{100} = 10$, so $f(100) = -4 - 12\times10$

Step3: Compute the multiplication

$12\times10 = 120$, so $f(100) = -4 - 120$

Step4: Perform the subtraction

$-4 - 120 = -124$

Answer:

$-124$