SOLUTION: without graphing, tell whether the point (-2, 1/5) is on the graph of 2x+5y=16

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Question 390366: without graphing, tell whether the point (-2, 1/5) is on the graph of 2x+5y=16

Found 2 solutions by stanbon, jerryguo41:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
without graphing, tell whether the point (-2, 1/5) is on the graph of 2x+5y=16
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Substitute for x and for y and see if the equation is true.
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2*(-2)+5(1/5) = 16
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-4 + 1 = 16
-3 = 16
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The point is not on the graph.
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Cheers,
Stan H.
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Answer by jerryguo41(197)   (Show Source): You can put this solution on YOUR website!
without graphing, tell whether the point (-2, 1/5) is on the graph of 2x+5y=16
no it does not, if you plug your points in for x and y, you get


-3≠16

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