### Home > INT2 > Chapter 7 > Lesson 7.1.2 > Problem 7-31

7-31.

On graph paper, plot and connect the points and

*to form quadrilateral*

*. .*

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.Determine

andWrite the equations of

and . Are the diagonals of perpendicular?Find the slope of each diagonal.

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*