Question

what is the coordinate of the midpoint of bc? write your answer as an integer or a decimal, or mixed number in simplest form.

Explanation:

Step1: Identify the coordinates of B and C

The coordinate of B is - 72 and the coordinate of C is - 71.

Step2: Use the mid - point formula for a number line

The mid - point formula for two points \(x_1\) and \(x_2\) on a number line is \(\frac{x_1 + x_2}{2}\). Here \(x_1=-72\) and \(x_2 = - 71\). So, \(\frac{-72+( - 71)}{2}=\frac{-72 - 71}{2}=\frac{-143}{2}=-71.5\).

Answer:

-71.5