# How do you find the direct variation equation if y varies directly as x when #x=4#, #y=48#?

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To find the direct variation equation when y varies directly as x, you can use the formula y = kx, where k is the constant of variation. Substitute the given values of x and y into the equation and solve for k. Then, use the value of k to write the direct variation equation. In this case, when x = 4 and y = 48:

48 = k * 4

k = 48 / 4

k = 12

Therefore, the direct variation equation is y = 12x.

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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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