document.write( "Question 136344: how do i graph x+2y=-6? \n" ); document.write( "

Algebra.Com's Answer #99852 by Earlsdon(6294) $\"\"$ $\"About$

You can put this solution on YOUR website!
You can start by getting your equation into the slope-intercept form: y = mx+b
\n" ); document.write( " $\"x%2B2y+=+-6\"$ Subtract x from both sides.
\n" ); document.write( " $\"2y+=+-x-6\"$ Divide both sides by 2.
\n" ); document.write( " $\"y+=+%28-1%2F2%29x-3\"$
\n" ); document.write( "Now you need only two points to draw the graph of a linear equation.
\n" ); document.write( "First. let x = 0 then solve for y.
\n" ); document.write( " $\"y+=+%28-1%2F2%29%280%29-3\"$
\n" ); document.write( " $\"y+=+-3\"$
\n" ); document.write( "First point is (0,-3)
\n" ); document.write( "Now let y = 0 and solve for x.
\n" ); document.write( " $\"0+=+%28-1%2F2%29x-3\"$ Add 3 to both sides.
\n" ); document.write( " $\"3+=+%28-1%2F2%29x\"$ Multiply both sides by -2.
\n" ); document.write( " $\"-6+=+x\"$
\n" ); document.write( "Second point is (-6, 0)
\n" ); document.write( "Now plot these two point on your graph paper and draw a straight line through them. You should get the graph shown here:
\n" ); document.write( " $\"graph%28400%2C400%2C-8%2C5%2C-5%2C5%2C%28-1%2F2%29x-3%29\"$ \n" ); document.write( "

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