You can put this solution on YOUR website! I need to graph these equations and determine where they meet. I am stumped
y = 20x + 400
y = 10x + 600
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Use a couple of points to graph each equation:
y=20x+400
If x = 0, y = 400 giving you point (0,400)
If x = -10, y = 200 giving you point (-10,200)
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y = 10x + 600
If x = 0, y = 600 giving you point (0,600)
If x = -10, y = 500 giving you point (-10,500)
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If you want to find the intersection of the two lines:
Substitute for "y" and solve for "x":
20x + 400 = 10x + 600
10x = 200
x = 20
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Substitute for x and solve for "y":
y = 20*20 + 400
y = 400 + 400
y = 800
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Cheers,
Stan H.
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