the paper says rotate  (7,3) 180 degrees about the orgigin. fortate the resulting image 180degrees about the origin.  I have NO clue what to do. 

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What is &nbsp? If your paper says to rotate the coordinates (7,3) 180 degrees about the orgin to get the reslulting image. You must find what the image is in the first place. Rotating it about the orgin is the coordinates (0,0). In otherwords, the orgin IS the coordinates (0,0) it IS the heart of the graph and rotating the image 180 degrees is basicly like durning your  pencil from the direction of south to north. You can pretty much figure it out from there since i do not have the problem directly infront of me.