Question 395444
Determine whether the points in each table lie on a straight
line. 
X Y 
2 -4 
4 -14
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Notice that when x increases by 2, y decreases by 10:::slope = -5
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8 -34
Notice that when x increases by 4, y decreases by 20:::slope = -5
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13 -59
Notice that when x increases by 5, y decreases by 25:::slope = -5
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Conclusion: They are all on the same line.
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Cheers,
Stan H.