Question 437879: can you please help me with this question---- line L contains the points (0,4) and (2,0).HOw can I show that the point (-25,81) does OR does not lie on line L Thank you very much
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! can you please help me with this question---- line L contains the points (0,4) and (2,0).HOw can I show that the point (-25,81) does OR does not lie on line L
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Find the equation of the line thru those 2 points.
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Note:
y-intercept = 4.
slope = (4-0)/(0-2) = -2
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Equation: y = -2x+4
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Checking the point (-25,81)
81 = -2(-25)+4
81 = 54
Wrong
So that point is not on that line.
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cheers,
Stan H.
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