Question

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

Explanation:

Step1: Identify coordinates

The coordinate of point $J$ is $4$ and the coordinate of point $L$ is $10$.

Step2: Apply mid - point formula

The mid - point formula for two points with coordinates $x_1$ and $x_2$ on a number line is $\frac{x_1 + x_2}{2}$. Here $x_1 = 4$ and $x_2=10$, so the mid - point is $\frac{4 + 10}{2}$.

Step3: Calculate the mid - point

$\frac{4+10}{2}=\frac{14}{2}=7$.

Answer:

$7$