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triangle PQR lies in the xy-plane, and the coordinates of vertex Q are (2,-3). Triangle PQR is rotated 180 degree clockwise about the origin and then reflected across the y-axis to produce triangle PQR', where vertex Q' corresponds to vertex Q of triangle PQR. what are the coordinates of Q'?

 Oct 10, 2017
 #1
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Rotating Q 180° clock-wise about the origin produces (-3, 2)

 

Reflecting this about the y axis  produces Q' = ( 3, 2)

 

 

cool cool cool

 Oct 10, 2017

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