Question

what is the coordinate of the mid - point of $overline{de}$?
write your answer as an integer, decimal, or mixed number in simplest form.

Explanation:

Step1: Recall mid - point formula

For a line - segment with endpoints $(x_1)$ and $(x_2)$ on the number line, the mid - point $M$ is given by $M=\frac{x_1 + x_2}{2}$. Here, $x_1=-3$ (coordinate of $D$) and $x_2 = 2$ (coordinate of $E$).

Step2: Calculate the mid - point

Substitute $x_1=-3$ and $x_2 = 2$ into the formula: $M=\frac{-3 + 2}{2}=\frac{-1}{2}=-0.5$.

Answer:

$-0.5$