# Chapter 2 - Section 2.1 - Linear Equations in Two Variables - 2.1 Exercises: 71

$(2.1,.9)$

#### Work Step by Step

We are given that the midpoint $M$ of a line segment $PQ$ with endpoints ($x_{1}$,$y_{1}$) and ($x_{2}$,$y_{2}$) is equal to: $M=(\frac{x_{1}+x_{2}}{2},\frac{y_{1}+y_{2}}{2})$ Therefore, $M=(\frac{2.5+1.7}{2},\frac{3.1+(-1.3)}{2})=(\frac{4.2}{2},\frac{3.1-1.3}{2})=(\frac{4.2}{2},\frac{1.8}{2})=(2.1,.9)$.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.