# Is #y =4.2/x# a direct variation equation and if so, what is the constant of variation?

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Yes, the equation ( y = \frac{4.2}{x} ) is a direct variation equation. The constant of variation, often denoted as k, is equal to 4.2.

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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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