document.write( "Question 804544: Find the equation of the line that contains the point(5,-7)and is perpendicular to the line containing the points (-4,9) and (3,6). \n" ); document.write( "
Algebra.Com's Answer #484808 by erica65404(394)\"\" \"About 
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find slope
\n" ); document.write( "\"%286-9%29%2F%283-%28-4%29%29=3%2F7\"
\n" ); document.write( "a line perpendicular to that would have a slope of \"-7%2F3\"
\n" ); document.write( "\"y=%28-7%2F3%29x%2Bb\"
\n" ); document.write( "plug the point into the equation
\n" ); document.write( "\"-7=%28-7%2F3%295%2Bb\"
\n" ); document.write( "\"-7=-11%282%2F3%29%2Bb\"
\n" ); document.write( "\"4.66=b\"
\n" ); document.write( "the final equation is
\n" ); document.write( "\"y=%28-7%2F3%29x%2B4.66\"
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