Algebra-2

If z varies inversely with x and directly with y, we can write the equation as:

z = k * (y / x)

where k is the constant of variation.

To find the value of k, we can substitute the given values of z, x, and y into the equation:

-2 = k * (48 / 4)

Simplifying:

-2 = k * 12

Dividing both sides by 12:
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