Question

what is the coordinate of the midpoint of $overline{lm}$? write your answer as an integer or a decimal, or mixed number in simplest form.

Explanation:

Step1: Identify coordinates

The coordinate of point $L$ is $- 2$ and of point $M$ is $1$.

Step2: Use 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 $x_1=-2$ and $x_2 = 1$. So, $\frac{-2 + 1}{2}=\frac{-1}{2}=-0.5$.

Answer:

$-0.5$