Question

use the following function rule to find f(7).
f(x) = 10|x + 3|
f(7) = \boxed{}

Explanation:

Step1: Substitute $x=7$ into function

$f(7) = 10|7 + 3|$

Step2: Simplify inside absolute value

$7+3=10$, so $f(7) = 10|10|$

Step3: Evaluate absolute value and multiply

$|10|=10$, so $f(7)=10\times10$

Answer:

100