SOLUTION: Hi Is -2x-y=9 and 3x-4y=-8 a independent, dependent, or inconsistent soultion when graphed? Thanks!

Question 257051: Hi
Is -2x-y=9 and 3x-4y=-8 a independent, dependent, or inconsistent soultion
when graphed?
Thanks!

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Is -2x-y=9 and 3x-4y=-8 a independent, dependent, or inconsistent soultion
when graphed?
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Look at the slopes.
y = -2x-9 and y = (3/4)x +2
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One line has a slope of -2; the other has a slope of 3/4
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Two lines that have different slopes must intersect in one point.
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The system is independent because one line is not a multiple of the other.
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Cheers,
Stan H.
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