Question

use the number line to find the coordinate of the midpoint of $overline{ef}$.

Explanation:

Step1: Identify coordinates

The coordinate of point $E$ is $-6$ and the coordinate of point $F$ is $-2$.

Step2: Apply mid - point formula

The mid - point formula for two points $x_1$ and $x_2$ on a number line is $\frac{x_1 + x_2}{2}$. Here $x_1=-6$ and $x_2 = - 2$, so $\frac{-6+( - 2)}{2}=\frac{-6 - 2}{2}=\frac{-8}{2}=-4$.

Answer:

$-4$