SOLUTION: Another system of equations by graphing problem it's x+2y=8 and 2x+4y=40 and I solved for y on the first one and I don't know what number to pick for x to make the first line.

Question 1050127: Another system of equations by graphing problem
it's x+2y=8 and 2x+4y=40 and I solved for y on the first one and I don't know what number to pick for x to make the first line.
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Substitute for x in the other equation and solve for y...

Do you want to solve purely by graphing? Still you need a little bit of algebra. Pick one equation; Pick x=0 and solve for y. Pick y=0 and solve for x. Now you have axis intercepts. Now pick the other equation. Again pick x=0 and find y; and pick y=0 and find x; and now you have the axis intercept for the other line. Graph the lines! Can you read the intersection point on the graph?

You should find that your two equations are of parallel lines and they will NOT intersect.
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