How do you determine whether the equation #7x + 2y = 0# represents a direct variation and if it does, how do you find the constant of variation?

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Answer 1 · 2015-04-17T22:51:20

7x + 2y = 0
2y = -7x --> y = -7/2 *(x).
This is a direct variation. The constant of variation is (-7/2).