document.write( "Question 24885: Can you help me I cannot get this and I am afraid to ask the teacher again.
\n" ); document.write( "I need to graph the following 4 equations on my graph paper.
\n" ); document.write( "(1) 2x+y=9\r
\n" ); document.write( "\n" ); document.write( "(2) -x-y = -8\r
\n" ); document.write( "\n" ); document.write( "(3) - 3x + 4y = 2\r
\n" ); document.write( "\n" ); document.write( "(4) -2x -y = -3\r
\n" ); document.write( "\n" ); document.write( "Can you please explain in detail each step and if possible also plot them on a graph.
\n" ); document.write( "Thank you.
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Algebra.Com's Answer #13322 by elima(1433)\"\" \"About 
You can put this solution on YOUR website!
I'm sorry to hear you afraid to ask your teacher, don't ever be afraid to ask us.
\n" ); document.write( "First step would be to but each equation in slope-intercept form;
\n" ); document.write( "y=mx+b
\n" ); document.write( "m=slope
\n" ); document.write( "b=y-intercept
\n" ); document.write( "(1) 2x+y=9
\n" ); document.write( "subtract 2x from each side ;
\n" ); document.write( "y=9-2x
\n" ); document.write( "but this in the slope -intercept form;
\n" ); document.write( "y=-2x+9
\n" ); document.write( "slope=-\"2%2F1\"
\n" ); document.write( "y-intercept=9
\n" ); document.write( "the y-intercept is your strating point on the graph, it is;
\n" ); document.write( "(0,9)
\n" ); document.write( "So you plot that point on the graph and with the slope of -2/1 you count the units and plot the next point.
\n" ); document.write( "so from (0,9) you go 2 units down and 1 unit over to the right. Thepoint you land on should be (1,7), and then plot one more point, then you draw your line
\n" ); document.write( "\"graph+%28300%2C300%2C+-3%2C3%2C-3%2C11%2C+-%282%2F1%29x%2B9%29\"
\n" ); document.write( "(2) -x-y = -8
\n" ); document.write( "For this one add x to each side;
\n" ); document.write( "-y=-8+x
\n" ); document.write( "y=8-x
\n" ); document.write( "Correct form;
\n" ); document.write( "y=-x+8
\n" ); document.write( "slope=-\"1%2F1\"
\n" ); document.write( "y-intercept=8
\n" ); document.write( "\"graph+%28300%2C300%2C+-3%2C3%2C-3%2C11%2C+-x%2B8%29\"
\n" ); document.write( "(3) - 3x + 4y = 2
\n" ); document.write( "4y=2+3x
\n" ); document.write( "y=\"2%2F4\"+3x
\n" ); document.write( "y=3x+\"1%2F4\"
\n" ); document.write( "slope=\"3%2F1\"
\n" ); document.write( "y-intercept=\"1%2F4\"
\n" ); document.write( "\"graph+%28300%2C300%2C+-3%2C3%2C-3%2C5%2C+3x%2B1%2F4%29\"
\n" ); document.write( "(4) -2x -y = -3
\n" ); document.write( "-y=-3+2x
\n" ); document.write( "-y=2x-3
\n" ); document.write( "y=-2x+3
\n" ); document.write( "slope=-\"2%2F1\"x
\n" ); document.write( "y-intercept=3
\n" ); document.write( "\"graph+%28300%2C300%2C+-3%2C3%2C-3%2C5%2C+-%282%2F1%29x%2B3%29\"
\n" ); document.write( "Hope you understand, don't be afraid to ask when you have problems.
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