X varies directly with y square and y=4, when x=8, if x=32 then find – InterviewSolution

1.

X varies directly with y square and y=4, when x=8, if x=32 then find the value of y.

Answer»

[EDITED: SORRY for my wrong answer. I hope you understood my answer.]

'X varies directly' means it is proportional.

Given: $x:y^2=2:1$

When $x=32$ , we GET $y^2=16$ , so $y=\pm4$ .

More information

'x varies inversely' means the product is always equal.

If we have two numbers x and y, we get $xy=k$ , where k is a number.

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