Which of the following equations represents y as a function of x? a. y^2 = 9 - x b. x^2 + y = 9 c. y^2 = x + 9 d. x^2 + y^2 = 9 e. y^3 = x + 9
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Step 1: Eliminate options that involve y squared, as they represent graphs that do not pass the vertical line test and therefore cannot be functions. Show more…
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