Calculus is quite new to me, so I think I'm starting from scratch and might be in over my head. Forgive my basic knowledge...(adsbygoogle = window.adsbygoogle || []).push({});

When considering two variables, how does one know which one is the independent or dependent variable?

For instance - The area A of a circle depends on the radius r of the circle.

Okay, it clearly states that A is dependent on r. But can you not also say that r is dependent on A?

If you have a bigger radius then you'll have a bigger area. But vice versa, if you have a bigger area than then don't you automatically get a bigger radius? Doesn't this mean that they can both be considered the dependent or independent variable depending on how you view the question?

Thank you!

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# Functions - Basic Question

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