### Home > GC > Chapter 7 > Lesson 7.1.3 > Problem 7-27

Remember that a midpoint of a line segment is the point that divides the segment into two segments of equal length. On graph paper, plot the points and

*. Where is the midpoint*

*if*

*? Explain how you found your answer.*

Plot the points at their given coordinates.

Divide the length by two in order to find the length of and

*.*

To find the coordinates of the midpoint, take the coordinates of either Point or Point

*and add or subtract, respectively, the length of*

*and*

*to the*

*-value.*

Check your answer by placing the point at the coordinates you found.

Because the -values of the two points are the same, the length of the segment is equal to the difference between the

*-values of the two points.*

Use the eTool below to model the problem.

Click the link at right for the full version of the eTool: *7-27 HW eTool*