document.write( "Question 613315: Find the coordinates of the image of point R(–1, 3) rotated 90° about the origin. (4 points) \n" ); document.write( "
Algebra.Com's Answer #385953 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Hint: to rotate any point (x,y) about the origin 90 degrees counter clockwise, you swap the x and y coordinates and you negate the x coordinate of the final point. So you go from (x,y) to (-y,x) \n" ); document.write( "
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