document.write( "Question 130306: how do i find the value of y so that the line passing through 2 points has the given slope? i have: (1,y),(2,4),slope/m = 1 \n" ); document.write( "
Algebra.Com's Answer #95176 by solver91311(24713)\"\" \"About 
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The slope is given by \"%28y%5B1%5D-y%5B2%5D%29%2F%28x%5B1%5D-x%5B2%5D%29\". So just substitute the coordinates from the two points. It doesn't really matter, but I'm calling (1,y) \"P%5B1%5D\" and (2,4) \"P%5B2%5D\".\r
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\n" ); document.write( "\n" ); document.write( "\"%28y-4%29%2F%281-2%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28y-4%29%2F-1\"\r
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\n" ); document.write( "\n" ); document.write( "But we are given that the slope equals 1, so:\r
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\n" ); document.write( "\n" ); document.write( "\"%28y-4%29%2F-1=1\"\r
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\n" ); document.write( "\n" ); document.write( "\"y-4=-1\"\r
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\n" ); document.write( "\n" ); document.write( "\"y=3\"
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