document.write( "Question 724246: Solve the equation of a line in slope intercept form that has a slope of -5/9 and passes through the point (18,7) I am supposed to get this from point slope to slope intercept this is what the equation looks like y-18=-5/9(x-7) PLEASE HELP! \n" ); document.write( "

Algebra.Com's Answer #443662 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+m+\"$ = slope
\n" ); document.write( "Say you are given the point ( x1 , y1 )
\n" ); document.write( "The general form for the point-slope formula is
\n" ); document.write( " $\"+%28+y+-+y%5B1%5D+%29+%2F+%28+x+-+x%5B1%5D+%29+=+m+\"$
\n" ); document.write( "You are given:
\n" ); document.write( "( x1 , y1 ) = ( 18,7 )
\n" ); document.write( " $\"++m+=+-5%2F9+\"$
\n" ); document.write( "--------------
\n" ); document.write( "Plugging in these numbers,
\n" ); document.write( " $\"+%28+y+-+7+%29+%2F+%28+x+-+18+%29+=+-5%2F9+\"$
\n" ); document.write( "Multiply both sides by $\"+9%2A%28+x+-+18+%29+\"$
\n" ); document.write( " $\"+9%2A%28+y+-+7+%29+=+-5%2A%28+x+-+18+%29+\"$
\n" ); document.write( " $\"+9y+-+63+=+-5x+%2B+90+\"$
\n" ); document.write( " $\"+9y+=+-5x+%2B+153+\"$
\n" ); document.write( " $\"+y+=+%28-5%2F9%29%2Ax+%2B+17+\"$
\n" ); document.write( "--------------------
\n" ); document.write( "check:
\n" ); document.write( "Does it go through ( 18,7 ) ?
\n" ); document.write( " $\"+y+=+%28-5%2F9%29%2Ax+%2B+17+\"$
\n" ); document.write( " $\"+7+=+%28-5%2F9%29%2A18+%2B+17+\"$
\n" ); document.write( " $\"+7+=+-10+%2B+17+\"$
\n" ); document.write( " $\"+7+=+7+\"$
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

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