If y varies directly as x, find the constant of the variation when y = 12 and x = 4

Question

Mathematics

Kai Walls

2 June, 15:17

If y varies directly as x, find the constant of the variation when y = 12 and x = 4

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Answers (1)

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Gemma Weeks · Answer 1

To demonstrate the statement "y varies directly as x", you will have to have this equation:

y = kx

Where k = constant of the variation

In this problem, you have to substitute the value of x and y to calculate for the constant.

12 = k (4)

k = 3