document.write( "Question 24885: Can you help me I cannot get this and I am afraid to ask the teacher again.
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document.write( "I need to graph the following 4 equations on my graph paper.
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document.write( "(1) 2x+y=9\r
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document.write( "(2) -x-y = -8\r
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document.write( "(3) - 3x + 4y = 2\r
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document.write( "(4) -2x -y = -3\r
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document.write( "Can you please explain in detail each step and if possible also plot them on a graph.
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document.write( "Thank you.
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Algebra.Com's Answer #13322 by elima(1433)![]() ![]() ![]() 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=- \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( " \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=- \n" ); document.write( "y-intercept=8 \n" ); document.write( " \n" ); document.write( "(3) - 3x + 4y = 2 \n" ); document.write( "4y=2+3x \n" ); document.write( "y= \n" ); document.write( "y=3x+ \n" ); document.write( "slope= \n" ); document.write( "y-intercept= \n" ); document.write( " \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=- \n" ); document.write( "y-intercept=3 \n" ); document.write( " \n" ); document.write( "Hope you understand, don't be afraid to ask when you have problems. \n" ); document.write( "=) \n" ); document.write( " |