document.write( "Question 1101065: Find y if the line through (9,3) and (-7,y) has a slope of -3/13 \n" ); document.write( "

Algebra.Com's Answer #715643 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
slope = [ change in y ] / [ change in x ]
\n" ); document.write( " $\"+%28+y+-+3+%29+%2F+%28+-7+-+9+%29+=+-3%2F13+\"$
\n" ); document.write( " $\"+%28+y+-+3+%29+%2F+%28-16%29+=+-3%2F13+\"$
\n" ); document.write( "Multiply both sides by $\"+-13%2A16+=+-208+\"$
\n" ); document.write( " $\"+13%2A%28+y+-+3+%29+=+3%2A16+\"$
\n" ); document.write( " $\"+13y+-+39+=+48+\"$
\n" ); document.write( " $\"+13y+=+87+\"$
\n" ); document.write( " $\"+y+=+87%2F13+\"$
\n" ); document.write( "-------------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+%28+y+-+3+%29+%2F+%28-16%29+=+-3%2F13+\"$
\n" ); document.write( " $\"+%28+87%2F13+-+39%2F13+%29+%2F+%28-16%29+=+-3%2F13+\"$
\n" ); document.write( " $\"+48%2F13+=+%28+16%2A3+%29%2F13+\"$
\n" ); document.write( " $\"+48%2F13+=+48%2F13+\"$
\n" ); document.write( "OK \n" ); document.write( "

\n" );