If y=10 when x=4, how do you find x when y=2 given that y varies inversely as x?
To find x when y=2, given that y varies inversely as x, you can use the formula for inverse variation: y = k/x.
First, solve for the constant of variation (k) using the initial values: y=10 when x=4.
10 = k/4
Multiply both sides by 4:
40 = k
Now, substitute the given value of y=2 into the equation and solve for x:
2 = 40/x
Multiply both sides by x:
2x = 40
Divide both sides by 2:
x = 20
Therefore, when y=2, x=20.
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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.
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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