Question

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

Explanation:

Step1: Identify the coordinates of D and E

The coordinate of D is - 10 and the coordinate of E is 10.

Step2: Use the mid - point formula for one - dimensional coordinates

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

Step3: Calculate the result

\(\frac{-10+10}{2}=\frac{0}{2}=0\)

Answer:

0