Question

f(×)=|×|-2, find f(-9)

Answer 1

Given the function:

$f(x)=|x|-2$

We will find the value of f(-9)

So, we will substitute with x = -9 into the given function

Note: the absolute value of any negative number will be positive of the number.

So,

$\begin{gathered} f(-9)=|-9|-2 \\ f(-9)=9-2 \\ f(-9)=7 \end{gathered}$

So, the answer will be f(-9) = 7