document.write( "Question 1062200: Write the point slope form of the equation of the line that passes through the points (-3,5) and (-1,4) \n" ); document.write( "
Algebra.Com's Answer #677049 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
Write the point slope form of the equation of the
\n" ); document.write( "line that passes through the points (-3,5) and (-1,4)
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document.write( "Let's plot the points (-3,5) and (-1,4), and draw a line\r\n" );
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document.write( "Now we use the slope formula:\r\n" );
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document.write( "\"m\"\"%22%22=%22%22\"\"%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29\"\r\n" );
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document.write( "\"m\"\"%22%22=%22%22\"\"%28%284%29-%285%29%29%2F%28%28-1%29-%28-3%29%29\"\r\n" );
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document.write( "\"m\"\"%22%22=%22%22\"\"%284-5%29%2F%28-1%2B3%29\"\r\n" );
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document.write( "\"m\"\"%22%22=%22%22\"\"%28-1%29%2F2\"\r\n" );
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document.write( "\"m\"\"%22%22=%22%22\"\"-1%2F2\"\r\n" );
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document.write( "Now use the point-slope form:\r\n" );
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document.write( "\"y-y%5B1%5D\"\"%22%22=%22%22\"\"m%28x-x%5B1%5D%29\"\r\n" );
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document.write( "\"y-5\"\"%22%22=%22%22\"\"expr%28-1%2F2%29%28x-%28-3%29%5E%22%22%29\"\r\n" );
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document.write( "That's the point slope form. But it can be simplified \r\n" );
document.write( "to the slope-intercept form y = mx+b\r\n" );
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document.write( "\"y-5\"\"%22%22=%22%22\"\"expr%28-1%2F2%29%28x%2B3%29\"\r\n" );
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document.write( "\"y-5\"\"%22%22=%22%22\"\"expr%28-1%2F2%29x-3%2F2\"\r\n" );
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document.write( "\"y\"\"%22%22=%22%22\"\"expr%28-1%2F2%29x-3%2F2%2B5\"\r\n" );
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document.write( "\"y\"\"%22%22=%22%22\"\"expr%28-1%2F2%29x-3%2F2%2B10%2F2\"\r\n" );
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document.write( "\"y\"\"%22%22=%22%22\"\"expr%28-1%2F2%29x%2B7%2F2\"\r\n" );
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document.write( "Edwin
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