document.write( "Question 197698: write an equation in slope intercept form of a line with the following characteristics: perpendicular to the graph of 2x-3y=12 and passing through the point at (4,3). \n" ); document.write( "
Algebra.Com's Answer #148240 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "\"2x-3y=12\" Start with the given equation.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"-3y=12-2x\" Subtract \"2x\" from both sides.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"-3y=-2x%2B12\" Rearrange the terms.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=%28-2x%2B12%29%2F%28-3%29\" Divide both sides by \"-3\" to isolate y.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=%28%28-2%29%2F%28-3%29%29x%2B%2812%29%2F%28-3%29\" Break up the fraction.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=%282%2F3%29x-4\" Reduce.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "We can see that the equation \"y=%282%2F3%29x-4\" has a slope \"m=2%2F3\" and a y-intercept \"b=-4\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Now to find the slope of the perpendicular line, simply flip the slope \"m=2%2F3\" to get \"m=3%2F2\". Now change the sign to get \"m=-3%2F2\". So the perpendicular slope is \"m=-3%2F2\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Now let's use the point slope formula to find the equation of the perpendicular line by plugging in the slope \"m=2%2F3\" and the coordinates of the given point .\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y-y%5B1%5D=m%28x-x%5B1%5D%29\" Start with the point slope formula\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y-3=%28-3%2F2%29%28x-4%29\" Plug in \"m=-3%2F2\", \"x%5B1%5D=4\", and \"y%5B1%5D=3\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y-3=%28-3%2F2%29x%2B%28-3%2F2%29%28-4%29\" Distribute\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y-3=%28-3%2F2%29x%2B6\" Multiply\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=%28-3%2F2%29x%2B6%2B3\" Add 3 to both sides. \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=%28-3%2F2%29x%2B9\" Combine like terms. \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "So the equation of the line perpendicular to \"2x-3y=12\" that goes through the point is \"y=%28-3%2F2%29x%2B9\".\r
\n" ); document.write( "
\n" ); document.write( "
\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 \"y=%282%2F3%29x-4\" (red) and the perpendicular line \"y=%28-3%2F2%29x%2B9\" (green) through the point .
\n" ); document.write( "
\n" ); document.write( "
\n" );