Vert P.
asked • 04/09/15direct variation
y is -50 when x is 15
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1 Expert Answer
Edward C. answered • 04/10/15
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Caltech Grad for math tutoring: Algebra through Calculus
Direct variation means that y = k*x for some constant k
If y is -50 when x is 15 then
-50 = k*(15)
k = -50 / 15 = -10/3
so y = (-10/3)*x
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Mark H.
04/09/15