document.write( "Question 1019504: 1. If U(5, 3) is reflected in the line x = 1, what is U'? \n" ); document.write( "
Algebra.Com's Answer #635469 by Edwin McCravy(20056)\"\" \"About 
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document.write( "We draw the graph:\r\n" );
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document.write( "The green line is the line x = 1.  If we pretend that the\r\n" );
document.write( "green line is a mirror, where would it seem as though its\r\n" );
document.write( "reflection U' in the mirror would be?\r\n" );
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document.write( "U' would be the same distance from the left side of the\r\n" );
document.write( "green line as U(5,3) is from the right side on the green \r\n" );
document.write( "line.  Using the x-axis as a measuring stick we can count \r\n" );
document.write( "that there are 4 units between U and the green line, \r\n" );
document.write( "indicated by the dotted line:\r\n" );
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document.write( "Therefore, to locate the image point U', we count 4\r\n" );
document.write( "units from the green line on the left side, and we \r\n" );
document.write( "see that the image point U' ends up at U'(-3,3), \r\n" );
document.write( "like this:\r\n" );
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document.write( "Edwin
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