# If y varies inversely with x, and y = 5 when x = 7, what is the value of y when x = 4?

To find the value of y when x = 4, we can use the inverse variation equation. The equation for inverse variation is y = k/x, where k is the constant of variation.

Given that y = 5 when x = 7, we can substitute these values into the equation to solve for k:

5 = k/7

To find the value of k, we can multiply both sides of the equation by 7:

35 = k

Now that we have the value of k, we can substitute it back into the inverse variation equation and solve for y when x = 4:

y = 35/4

Therefore, when x = 4, the value of y is 35/4.

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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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