document.write( "Question 202961: I need help with this algebra problem...\r
\n" ); document.write( "\n" ); document.write( "Find an equation of the line containing the given pair of points.
\n" ); document.write( "(-7,-5) & (-3,-2) in slope intercept form y= \r
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Algebra.Com's Answer #153101 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "First let's find the slope of the line through the points and \r
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\n" ); document.write( "\n" ); document.write( "Note: is the first point . So this means that \"x%5B1%5D=-7\" and \"y%5B1%5D=-5\".\r
\n" ); document.write( "\n" ); document.write( "Also, is the second point . So this means that \"x%5B2%5D=-3\" and \"y%5B2%5D=-2\".\r
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\n" ); document.write( "\n" ); document.write( "\"m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29\" Start with the slope formula.\r
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\n" ); document.write( "\n" ); document.write( "\"m=%28-2--5%29%2F%28-3--7%29\" Plug in \"y%5B2%5D=-2\", \"y%5B1%5D=-5\", \"x%5B2%5D=-3\", and \"x%5B1%5D=-7\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=%283%29%2F%28-3--7%29\" Subtract \"-5\" from \"-2\" to get \"3\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=%283%29%2F%284%29\" Subtract \"-7\" from \"-3\" to get \"4\"\r
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\n" ); document.write( "\n" ); document.write( "So the slope of the line that goes through the points and is \"m=3%2F4\"\r
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\n" ); document.write( "\n" ); document.write( "Now let's use the point slope formula:\r
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\n" ); document.write( "\n" ); document.write( "\"y-y%5B1%5D=m%28x-x%5B1%5D%29\" Start with the point slope formula\r
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\n" ); document.write( "\n" ); document.write( "\"y--5=%283%2F4%29%28x--7%29\" Plug in \"m=3%2F4\", \"x%5B1%5D=-7\", and \"y%5B1%5D=-5\"\r
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\n" ); document.write( "\n" ); document.write( "\"y--5=%283%2F4%29%28x%2B7%29\" Rewrite \"x--7\" as \"x%2B7\"\r
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\n" ); document.write( "\n" ); document.write( "\"y%2B5=%283%2F4%29%28x%2B7%29\" Rewrite \"y--5\" as \"y%2B5\"\r
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\n" ); document.write( "\n" ); document.write( "\"y%2B5=%283%2F4%29x%2B%283%2F4%29%287%29\" Distribute\r
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\n" ); document.write( "\n" ); document.write( "\"y%2B5=%283%2F4%29x%2B21%2F4\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"y=%283%2F4%29x%2B21%2F4-5\" Subtract 5 from both sides. \r
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\n" ); document.write( "\n" ); document.write( "\"y=%283%2F4%29x%2B1%2F4\" Combine like terms. note: If you need help with fractions, check out this solver.\r
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\n" ); document.write( "\n" ); document.write( "So the equation that goes through the points and is \"y=%283%2F4%29x%2B1%2F4\"\r
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