Question 249804: I need help figuring out this equation and I also need to graph it. Can you please help? 2(y+3)<4x. Thank you.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! I need help figuring out this equation and I also need to graph it. Can you please help? 2(y+3)<4x. Thank you.
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You have an inequality in 2 variables. You can solve for x in terms of y, or for y in terms of x, but that's all
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To graph it, solve for y in terms of x:
2(y+3)<4x Divide by 2
y+3<2x Subtract 3
y<2x-3
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This is a linear function, so the graph will be a straight line. 2 points is sufficient to plot a straight line.
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Use = instead of < to find 2 points.
x...y
0...-3 --> (0,-3)
2...+1 --> (2,1)
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Plot those 2 points and draw a line thru them. The line is where y = 2x-3.
The area below the line is where it's less than (<), not including the line.
You can dl FREE software to make graphs at
http://www.padowan.dk.com
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