Class 8 th Mathematics 7- Variation

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Student's name *

Choose the correct alternative answer for each of the given questions : y varies as x. Express this statement symbolically. *

2 points

y α - x

y α 1/ x

y α x

If f= 3.9 / d² what is the statement of variation? *

2 points

f α d²

d α f²

f α 1/ d²

A= π r² What statement of variation do we get? *

2 points

A α r

A α r²

A α 1/ r²

y varies inversely as the cube root of x. This statement can be expressed in symbols as............ *

2 points

y α ∛x

x α ∛x

x α1/ ∛x

y α1/ ∛x

If x² α y which of the following statements is true? *

2 points

y² α x

x α √y

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