OpenStax, Algebra and Trigonometry 2e §3.1 Functions and Function Notation · Example 9 · Algebra · Functions

Expressing the Equation of a Circle as a Function

Does the equation $x^{2} + y^{2} = 1$ represent a function with $x$ as input and $y$ as output? If so, express the relationship as a function $y = f (x) .$

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OpenStax, Algebra and Trigonometry 2e · §3.1 Functions and Function Notation · Example 9

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