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1 of 8 0-day streak

Lesson Practice

Inverse variation: write the relationship

DIFFICULTYstandard challenge exam

QUESTION TYPEMix of allChange

to-equation, inverse, power 1 to-equation, inverse, power 2 NOWMix of allRecommended

Question 1 of 8

No calculator

\(k\) is a positive constant. The symbol \(\propto\) means “is proportional to”

1 mark

A \propto \frac{1}{r^{2}}

Which rule translates the statement correctly?

r = \frac{k}{A^{2}}

A = k - r^{2}

A = kr^{2}

A = \frac{k}{r^{2}}