document.write( "Question 548100: What would the slope for 2x+y=4 be?
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #356693 by oberobic(2304) $\"\"$ $\"About$

You can put this solution on YOUR website!
Get the equation into slope-intercept form to immediately see your answer to the slope and to the y-intercept.
\n" ); document.write( ".
\n" ); document.write( "y = m*x + b
\n" ); document.write( "m = slope
\n" ); document.write( "(0,b) = y-intercept
\n" ); document.write( ".
\n" ); document.write( "2x + y = 4
\n" ); document.write( "y = -2x + 4
\n" ); document.write( "m = -2
\n" ); document.write( "(0,4) = y-intercept.
\n" ); document.write( ".
\n" ); document.write( "You only need one more point to be able to draw a line.
\n" ); document.write( "A good candidate is to find the x-intercept, which is often asked for.
\n" ); document.write( "Set y = 0 and solve for x.
\n" ); document.write( ".
\n" ); document.write( "0 = -2x + 4
\n" ); document.write( "2x = 4
\n" ); document.write( "x = 2
\n" ); document.write( "(2,0) = x-intercept
\n" ); document.write( ".
\n" ); document.write( "A graph is always useful.
\n" ); document.write( ".
\n" ); document.write( " $\"+graph%28500%2C500%2C-5%2C5%2C-5%2C5%2C-2%2Ax%2B4%29+\"$
\n" ); document.write( ".
\n" ); document.write( "Done. \n" ); document.write( "

\n" );