Question

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

Explanation:

Step1: Identify the coordinates

The coordinate of $G$ is $- 1$ and the coordinate of $H$ is $2$.

Step2: Use the 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 $x_1=-1$ and $x_2 = 2$, so the mid - point is $\frac{-1 + 2}{2}$.

Step3: Calculate the result

$\frac{-1+2}{2}=\frac{1}{2}=0.5$

Answer:

$0.5$