document.write( "Question 357153: Find the equation of the line that goes through the points (-3,2) and (4,5)..i got y=3/7x+5 but i checked and it doesnt fit \n" ); document.write( "
Algebra.Com's Answer #255044 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
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=-3\" and \"y%5B1%5D=2\".\r
\n" ); document.write( "\n" ); document.write( "Also, is the second point . So this means that \"x%5B2%5D=4\" and \"y%5B2%5D=5\".\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=%285-2%29%2F%284--3%29\" Plug in \"y%5B2%5D=5\", \"y%5B1%5D=2\", \"x%5B2%5D=4\", and \"x%5B1%5D=-3\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=%283%29%2F%284--3%29\" Subtract \"2\" from \"5\" to get \"3\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=%283%29%2F%287%29\" Subtract \"-3\" from \"4\" to get \"7\"\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%2F7\"\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-2=%283%2F7%29%28x--3%29\" Plug in \"m=3%2F7\", \"x%5B1%5D=-3\", and \"y%5B1%5D=2\"\r
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\n" ); document.write( "\n" ); document.write( "\"y-2=%283%2F7%29%28x%2B3%29\" Rewrite \"x--3\" as \"x%2B3\"\r
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\n" ); document.write( "\n" ); document.write( "\"y-2=%283%2F7%29x%2B%283%2F7%29%283%29\" Distribute\r
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\n" ); document.write( "\n" ); document.write( "\"y-2=%283%2F7%29x%2B9%2F7\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"y=%283%2F7%29x%2B9%2F7%2B2\" Add 2 to both sides. \r
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\n" ); document.write( "\n" ); document.write( "\"y=%283%2F7%29x%2B23%2F7\" 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%2F7%29x%2B23%2F7\"\r
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\n" ); document.write( "\n" ); document.write( "If you need more help, email me at jim_thompson5910@hotmail.com\r
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\n" ); document.write( "\n" ); document.write( "Also, feel free to check out my tutoring website\r
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\n" ); document.write( "\n" ); document.write( "Jim
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