# Is #5y = -4x# a direct variation and if it is, how do you find the constant?

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Yes, the equation 5y = -4x represents a direct variation. To find the constant of variation, you need to isolate y in the equation. Divide both sides of the equation by 5 to solve for y: y = (-4/5)x. The constant of variation, represented by k, is the coefficient of x, which in this case is -4/5. Therefore, the constant of variation is -4/5.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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