Chapter 3.1, Problem 5AYU

If $f\left(x\right)=x^2-4$, find $f\left(-2\right)$. (pp. 60-62)

To determine

To find: The value of the given function at $x=-2$.

Answer to Problem 5AYU

Solution:

$f(-2)=0$

Explanation of Solution

Given:

The given function is $f(x)=x^2-4$.

Formula Used:

Here, we just have to substitute the value of $x$ in the given function.

Calculation:

Substitute $x=-2$ in the given function, we get

$f(-2)={(-2)}^2-4$

$=4-4=0$