In Exercises 1930, determine whether the equation represents y as a function of x. x2 +
Chapter 1, Problem 19(choose chapter or problem)
Testing for Functions Represented Algebraically In Exercises 19–30, determine whether the equation represents y as a function of x.
\(x^{2}+y^{2}=4\)
Text Transcription:
x^2 + y^2 = 4
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