If z varies inversely as x^(2) and direct;y as y, then
A. x^(2)yz=constant
B. x^(2)/yz = constant
C. (x^2 z )/y=constant
D. (x^2y)/z=constant

Question

If z varies inversely as x^(2) and direct;y as y, then
A. x^(2)yz=constant
B. x^(2)/yz = constant
C. (x^2 z )/y=constant
D. (x^2y)/z=constant

anonymous · Answer

@Callisto

skullpatrol · Answer

any ideas?

skullpatrol · Answer

do you know what varies directly an inversely means?

callisto · Answer

z varies inversely as x^(2) and directly as y:
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That is $ z= k \frac{y}{x^2}$
Can you do it from here?

skullpatrol · Answer

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callisto · Answer

Do you mean I gave answers?

skullpatrol · Answer

you just did what everybody else does

skullpatrol · Answer

i would prefer the asker participate in trying to learn

skullpatrol · Answer

very few of them do

anonymous · Answer

i don't understand why C is constant

callisto · Answer

@kryton1212 From the given information, can you write the relations between x, y and z?

skullpatrol · Answer

C is just a letter we choose to be a constant.

skullpatrol · Answer

Just like we choose x to be a variable.

anonymous · Answer

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