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Given that y varies directly with x, what is the equation of direct variation if y is 3 when x is 7?
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Given that y varies directly with x, what is the equation of direct variation if y is 3 when x is 7?

User Baptiste Costa
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1 Answer

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y α x

y = kx

3= k*7

3 = 7k

3/7 = k

k = 3/7

Relationship is y = kx , that is y = (3/7)x
User Frederik Aalund
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