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Mathematics 9 Online
OpenStudy (anonymous):

PLEASE HELP! This is my last ? please help I don't get this. The coordinates of rectangle ABCD are A(-8, 6), B(-2, 6), C(-2, 3), D(-8, 3). What are the coordinates of the point of intersection of the diagonals of the rectangle after the rectangle is reflected across the x-axis?

OpenStudy (mertsj):

Reflecting across the x axis simply changes the y values to their opposites. So your new rectangle has these vertices: (-8,-6), (-2,-6), (-2,-3), (-8,-3)

OpenStudy (mertsj):

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