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Which equation shows direct variation? A y = 2x B y = x+2 C y = 2x + 2
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5 votes
Which equation shows direct variation?
A y = 2x B y = x+2 C y = 2x + 2

User Thertweck
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1 Answer

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Direct variation also mean proportional and to find which equation is proportional, it has to have no y-intercept (something added or subtracted).

So A shows direct variation because it has no y-intercept.
User Lemmons
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