document.write( "Question 555808: what is the equation for (-3,12) and (0,10) along with the slope and y-intercept? \n" ); document.write( "
Algebra.Com's Answer #361947 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\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=-3\" and \"y%5B1%5D=12\".\r
\n" ); document.write( "\n" ); document.write( "Also, is the second point . So this means that \"x%5B2%5D=0\" and \"y%5B2%5D=10\".\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=%2810-12%29%2F%280--3%29\" Plug in \"y%5B2%5D=10\", \"y%5B1%5D=12\", \"x%5B2%5D=0\", and \"x%5B1%5D=-3\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=%28-2%29%2F%280--3%29\" Subtract \"12\" from \"10\" to get \"-2\"\r
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\n" ); document.write( "\n" ); document.write( "\"m=%28-2%29%2F%283%29\" Subtract \"-3\" from \"0\" to get \"3\"\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=-2%2F3\"\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-12=%28-2%2F3%29%28x--3%29\" Plug in \"m=-2%2F3\", \"x%5B1%5D=-3\", and \"y%5B1%5D=12\"\r
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\n" ); document.write( "\n" ); document.write( "\"y-12=%28-2%2F3%29%28x%2B3%29\" Rewrite \"x--3\" as \"x%2B3\"\r
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\n" ); document.write( "\n" ); document.write( "\"y-12=%28-2%2F3%29x%2B%28-2%2F3%29%283%29\" Distribute\r
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\n" ); document.write( "\n" ); document.write( "\"y-12=%28-2%2F3%29x-2\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"y=%28-2%2F3%29x-2%2B12\" Add 12 to both sides. \r
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\n" ); document.write( "\n" ); document.write( "\"y=%28-2%2F3%29x%2B10\" Combine like terms. \r
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\n" ); document.write( "\n" ); document.write( "So the equation that goes through the points and is \"y=%28-2%2F3%29x%2B10\"\r
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\n" ); document.write( "\n" ); document.write( "The equation is now in y = mx+b form where \"m=-2%2F3\" and \"b=10\"\r
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\n" ); document.write( "\n" ); document.write( "So the slope is \"-2%2F3\" and the y-intercept is (0,10)\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, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you\r
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\n" ); document.write( "\n" ); document.write( "Jim

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