### Home > INT2 > Chapter 7 > Lesson 7.2.1 > Problem 7-74

7-74.

If

is the midpoint ofis the midpoint of, andis the midpoint of, what are the coordinates of?When finding the midpoint remember to calculate the average of the

-coordinates and the average of the-coordinates for the two points.What fraction of the distance from

tois? How do you know?Draw a slope triangle for

and a slope triangle for, then compare their side lengths.

Use the ratio from part (b) to determine the coordinates of point

.

Use the eTool to visualize the problem.

Click the link at right for the full version of the eTool: *INT2 7-74 HW eTool*