document.write( "Question 190944: A Line parallel to -3x + 2y = 9 and contains points (-2,1)
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Algebra.Com's Answer #143362 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\"-3x+%2B+2y+=+9\" Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( "\"2y=9%2B3x\" Add \"3x\" to both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"2y=3x%2B9\" Rearrange the terms.\r
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\n" ); document.write( "\n" ); document.write( "\"y=%283x%2B9%29%2F%282%29\" Divide both sides by \"2\" to isolate y.\r
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\n" ); document.write( "\n" ); document.write( "\"y=%283%2F2%29x%2B9%2F2\" Break up the fraction.\r
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\n" ); document.write( "\n" ); document.write( "We can see that the equation \"y=%283%2F2%29x%2B9%2F2\" has a slope \"m=3%2F2\" and a y-intercept \"b=9%2F2\".\r
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\n" ); document.write( "\n" ); document.write( "Since parallel lines have equal slopes, this means that we know that the slope of the unknown parallel line is \"m=3%2F2\".\r
\n" ); document.write( "\n" ); document.write( "Now let's use the point slope formula to find the equation of the parallel line by plugging in the slope \"m=3%2F2\" and the coordinates of the given point .\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-1=%283%2F2%29%28x--2%29\" Plug in \"m=3%2F2\", \"x%5B1%5D=-2\", and \"y%5B1%5D=1\"\r
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\n" ); document.write( "\n" ); document.write( "\"y-1=%283%2F2%29%28x%2B2%29\" Rewrite \"x--2\" as \"x%2B2\"\r
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\n" ); document.write( "\n" ); document.write( "\"y-1=%283%2F2%29x%2B%283%2F2%29%282%29\" Distribute\r
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\n" ); document.write( "\n" ); document.write( "\"y-1=%283%2F2%29x%2B3\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"y=%283%2F2%29x%2B3%2B1\" Add 1 to both sides. \r
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\n" ); document.write( "\n" ); document.write( "\"y=%283%2F2%29x%2B4\" Combine like terms. \r
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\n" ); document.write( "\n" ); document.write( "So the equation of the line parallel to \"-3x+%2B+2y+=+9\" that goes through the point is \"y=%283%2F2%29x%2B4\".\r
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\n" ); document.write( "\n" ); document.write( "Here's a graph to visually verify our answer:\r
\n" ); document.write( "\n" ); document.write( "Graph of the original equation \"-3x+%2B+2y+=+9\" (red) and the parallel line \"y=%283%2F2%29x%2B4\" (green) through the point .
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