document.write( "Question 804304: find the equation of the line passing through each pair of points(-9,2) and (0,0) \n" ); document.write( "

Algebra.Com's Answer #484692 by erica65404(394) $\"\"$ $\"About$

You can put this solution on YOUR website!
first you need to find the slope.
\n" ); document.write( " $\"%28y%5E2-y%5E1%29%2F%28x%5E2-x%5E1%29=m\"$
\n" ); document.write( " $\"%280-2%29%2F%280-%28-9%29%29=m\"$
\n" ); document.write( " $\"%28-2%29%2F9=m\"$
\n" ); document.write( "plug this into slope intercept equation
\n" ); document.write( " $\"y=mx%2Bb\"$
\n" ); document.write( " $\"y=%28%28-2%29%2F9%29x%2Bb\"$
\n" ); document.write( "plug (-9,2) into the above equation to solve for y.
\n" ); document.write( " $\"2=%28%28-2%29%2F9%29%28-9%29%2Bb\"$
\n" ); document.write( " $\"2=2%2Bb\"$
\n" ); document.write( " $\"b=0\"$
\n" ); document.write( "so the equation of the line is $\"y=%28%28-2%29%2F9%29x\"$ \n" ); document.write( "

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