document.write( "Question 382005: what is perpendicular to y = 8x - 1, through (4,10) \n" ); document.write( "

Algebra.Com's Answer #270874 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Perpendicular lines have slopes that are negative reciprocals.
\n" ); document.write( " $\"m%5B1%5D%2Am%5B2%5D=-1\"$
\n" ); document.write( " $\"8%2Am%5B2%5D=-1\"$
\n" ); document.write( " $\"m%5B2%5D=-1%2F8\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( " $\"y=mx%2Bb\"$
\n" ); document.write( " $\"y=-%281%2F8%29x%2Bb\"$
\n" ); document.write( "Use the point (4,10) to solve for $\"b\"$ .
\n" ); document.write( " $\"10=-%281%2F8%29%284%29%2Bb\"$
\n" ); document.write( " $\"b=20%2F2%2B1%2F2\"$
\n" ); document.write( " $\"b=21%2F2\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "

\n" ); document.write( " \n" ); document.write( "

\n" );