document.write( "Question 98366: The vertices of ⌂ABC are A(-3,4) B(-1,3), C(3,-2). The triangle is rotated 90 degrees counterclockwise. Use the rotation matrix [0 -1][1 0] (please note that [1 0] is directly under [0 -1] but I do not have large enough brackets or the know-how to place it like that)to find the coordinates of C'. I hope this made sense. Thank you for helping me.
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Algebra.Com's Answer #71526 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
C(3,-2). The triangle is rotated 90 degrees counterclockwise. Use the rotation matrix [0 -1][1 0] (please note that [1 0] is directly under [0 -1] but I do not have large enough brackets or the know-how to place it like that)to find the coordinates of C'.
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\n" ); document.write( "[0..-1]
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\n" ); document.write( "\n" ); document.write( "times
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\n" ); document.write( "\n" ); document.write( "C' =
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\n" ); document.write( "You can check this out visually by plotting (3,-2),
\n" ); document.write( "sketching a circle thru that point with center at
\n" ); document.write( "the origin, then extimate a counter-clockwise
\n" ); document.write( "rotation of 90 degrees. Do you end up at (2,-3)?
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\n" ); document.write( "cheers,
\n" ); document.write( "Stan H.
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