document.write( "Question 1070451: Write the slope-intercept form of an equation that passes through (-7,-13) and is perpendicular to the graph of y=-1/5x+5 \n" ); document.write( "

Algebra.Com's Answer #685563 by josmiceli(19441) $\"\"$ $\"About$

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$\"+y+=+%28-1%2F5%29%2Ax+%2B+5+\"$
\n" ); document.write( " $\"+m+=+-1%2F5+\"$
\n" ); document.write( "Any line perpendicular to this one will
\n" ); document.write( "have slope = $\"+-1%2Fm+\"$
\n" ); document.write( " $\"+-1%2F%28-1%2F5%29+=+5+\"$
\n" ); document.write( "---------------------
\n" ); document.write( "Use general point-slope formula
\n" ); document.write( " $\"+%28+y+-%28-13%29+%29+%2F+%28+x+-+%28-7%29+%29+=+5+\"$
\n" ); document.write( " $\"+%28+y+%2B+13+%29+%2F+%28+x+%2B+7+%29+=+5+\"$
\n" ); document.write( " $\"+y+%2B+13+=+5%2A%28+x+%2B+7+%29+\"$
\n" ); document.write( " $\"+y+%2B+13+=+5x+%2B+35+\"$
\n" ); document.write( " $\"+y+=+5x+%2B+22+\"$
\n" ); document.write( "-------------------------
\n" ); document.write( "check answer:
\n" ); document.write( "( -7, -13 )
\n" ); document.write( " $\"+y+=+5x+%2B+22+\"$
\n" ); document.write( " $\"+-13+=+5%2A%28-7%29+%2B+22+\"$
\n" ); document.write( " $\"+-13+=+-35+%2B+22+\"$
\n" ); document.write( " $\"+-13+=+-13+\"$
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

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