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Plot the following points on a sheet of graph paper and connect them in the order given. Then connect points and .

  1. A rectangle is a four-sided polygon with four right angles. Does the shape you graphed appear to be a rectangle? Use slope to justify your answer.

    Use the graph to help find the slopes. How do the slopes of perpendicular lines compare?

    Quadrilateral formed by connecting the 4 points given in the problem.

  2. If is rotated clockwise () about the origin to form , what are the coordinates of the vertices of ?

    Since the origin is at rotate each point in correlation to this point.