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The circumference of a circle is equal to pi times the diameter. Which direct variation equation represents this situation?
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The circumference of a circle is equal to pi times the diameter. Which direct variation equation represents this situation?

The circumference of a circle is equal to pi times the diameter. Which direct variation-example-1
User Eric Tuttleman
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1 Answer

7 votes
C = pi*d or

C = 2*pi*r

Both demonstrate direct variation.

User Obsidian Phoenix
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