Why does this equation define "y" as a function of "x" ? What would I need to know to answer this question? x³+y³=1
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Originally Posted by RaphaelB30 Why does this equation define "y" as a function of "x" ? What would I need to know to answer this question? x³+y³=1 Definition (from Wikipedia): A function ƒ from a set X to a set Y associates to each element x in X an element y = ƒ(x) in Y. Apply the definition to $\displaystyle y = \sqrt[3]{1 - x^3}$.
I know how the answer looks like but I still don't understand why its a function.
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