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Please help me with this problem

Please help me with this problem-example-1

1 Answer

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Answer:

y = - 2x

Explanation:

Given that x and y vary directly then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition x = - 5, y = 10, thus

k =
(y)/(x) =
(10)/(-5) = - 2, hence

y = - 2x ← is the equation relating them

User Harish Gokavarapu
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