Algebra.Com's Answer #260412 by Edwin McCravy(20055)![\"\"](\"/images/stars/stars-13.gif\")  
You can put this solution on YOUR website!
my daughter had a problem that i have never seen. Wanting to know if you can explain it to me. (-5,7),(-5,3)
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document.write( "I will assume the instructions for the problem was stated this way:\r\n" );
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document.write( "Find the equation of the line that passes through the two points\r\n" );
document.write( "(-5,7) and (-5,3).\r\n" );
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document.write( "[If you post again, please state the instructions so we won't have to\r\n" );
document.write( "guess. Thanks]\r\n" );
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document.write( "Let's plot those two points:\r\n" );
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document.write( "Now let's draw the line through those points. I'll draw it in green:\r\n" );
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document.write( "Now let's look at some more points on that same green line.\r\n" );
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document.write( "Now take a look at all those points. \r\n" );
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document.write( "Qestion: What do all those points have in common?\r\n" );
document.write( "Answer: They all have -5 for their x-coordinate.\r\n" );
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document.write( "To make a statement to describe that green vertical line, we would say:\r\n" );
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document.write( "\"All the points on that line have the x-coordinate = -5.\"\r\n" );
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document.write( "In algebra we shorten it to just this: x = -5 \r\n" );
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document.write( "That's the equation of that green vertical line:\r\n" );
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document.write( " x = -5\r\n" );
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document.write( "That's all there is to it!\r\n" );
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document.write( "Edwin
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