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On graph paper, plot and connect the points and to form quadrilateral .  

  1. What is the best name for quadrilateral ? Justify your answer.

    Explain why it is not a rhombus.

    is a parallelogram because opposite sides are parallel.

  2. Determine and . What is their relationship?

  3. Write the equations of and . Are the diagonals of perpendicular?

    Find the slope of each diagonal.

  1. What are the coordinates of the intersection point of diagonals and ?

Use the eTool below to solve for each part of the problem.
Click the link at right for the full version of the eTool: INT2 7-31 HW eTool