document.write( "Question 1062151: Write the point slope form of the equation of the line with a slope of - 2 and an x-intercept of -1. \n" ); document.write( "

Algebra.Com's Answer #676977 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
The point-slope form is:
\n" ); document.write( " $\"+y+=+m%2Ax+%2B+b+\"$ where
\n" ); document.write( " $\"+m+\"$ is the slope
\n" ); document.write( " $\"+b+\"$ is the y-intercept
\n" ); document.write( "-----------------------------
\n" ); document.write( "given:
\n" ); document.write( " $\"+m+=+-2+\"$
\n" ); document.write( "So far I have:
\n" ); document.write( " $\"+y+=+-2x+%2B+b+\"$
\n" ); document.write( "----------------------
\n" ); document.write( "The x-intercept occurs where $\"+y+=+0+\"$ ,
\n" ); document.write( "so you are given the point ( -1,0 )
\n" ); document.write( "Plug this point into the equation:
\n" ); document.write( " $\"+y+=+-2x+%2B+b+\"$
\n" ); document.write( " $\"+0+=+-2%2A%28-1%29+%2B+b+\"$
\n" ); document.write( " $\"+0+=+2+%2B+b+\"$
\n" ); document.write( " $\"+b+=+-2+\"$
\n" ); document.write( "----------------------
\n" ); document.write( "The equation is:
\n" ); document.write( " $\"+y+=+-2x+-+2+\"$
\n" ); document.write( "----------------------
\n" ); document.write( "Here's the plot:
\n" ); document.write( " $\"+graph%28+400%2C+400%2C+-5%2C+5%2C+-5%2C+5%2C+-2x+-2+%29+\"$ \n" ); document.write( "

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