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Suppose that y varies directly with x, and y=4 when x = 10.

(a) Write a direct variation equation that relates and y Equation: y =​

Suppose that y varies directly with x, and y=4 when x = 10. (a) Write a direct variation-example-1
User Marc Brigham
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1 Answer

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Answer:

y = 0.4x

Explanation:

given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

to find k use the condition y = 4 when x = 10 , then

4 = 10k ( divide both sides by 10 )


(4)/(10) = k , that is

k = 0.4

y = 0.4x ← equation of variation

User Ramr
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