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Question 569096: solve the system by graphing 2x+y=-7 & 5x+4y=-13. I How do I solve the problems to get the solutions to graph.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! solve the system by graphing 2x+y=-7 & 5x+4y=-13. I How do I solve the problems to get the solutions to graph.
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You don't "get the solution to graph."
You graph the 2 equations. Each is a straight line. Every point on the line is a solution to that equation.
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Where they intersect, the point that's on both equations, is the solution to the system of equations.
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2x+y=-7
y = -2x - 7
You need 2 points for a straight line.
Pick 2 values for x and find y.
Plot the 2 points.
Draw a line thru them.
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Do the same for the other equation.
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