document.write( "Question 698966: How do I graph 2x+y=2? \n" ); document.write( "
Algebra.Com's Answer #431129 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
First solve for y\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "2x+y=2\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "2x+y-2x=2-2x\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y = -2x + 2\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Looking at \"y=-2x%2B2\" we can see that the equation is in slope-intercept form \"y=mx%2Bb\" where the slope is \"m=-2\" and the y-intercept is \"b=2\" \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Since \"b=2\" this tells us that the y-intercept is .Remember the y-intercept is the point where the graph intersects with the y-axis\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "So we have one point \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Now since the slope is comprised of the \"rise\" over the \"run\" this means\r
\n" ); document.write( "\n" ); document.write( "\"slope=rise%2Frun\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Also, because the slope is \"-2\", this means:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"rise%2Frun=-2%2F1\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "which shows us that the rise is -2 and the run is 1. This means that to go from point to point, we can go down 2 and over 1\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "So starting at , go down 2 units \r
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "and to the right 1 unit to get to the next point \r
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Now draw a line through these points to graph \"y=-2x%2B2\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " So this is the graph of \"y=-2x%2B2\" through the points and
\n" ); document.write( "
\n" );