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On graph paper, plot and .  

  1. If is the midpoint of is the midpoint of , and is 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.

  2. What fraction of the distance from to  is ? How do you know?

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

  1. 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