# How do you write the direct variation equation if y varies directly as x, and y = 5 when x = -10?

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The direct variation equation is (y = kx), where (k) is the constant of variation. To find (k), substitute the given values of (x) and (y) into the equation and solve for (k). (y = kx) (5 = k(-10)) (k = -\frac{1}{2}) Therefore, the direct variation equation is (y = -\frac{1}{2}x).

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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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