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Determine If the Equation Specifies a Function with Independent Variable

Question 45

Short Answer

Determine if the equation specifies a function with independent variable x. If so, find the domain. If not, find a value of x to which there corresponds more than one value of y:
-x2 + y2 = 36
A) A function with domain ℛ
B) Not a function; for example, when x = 0, y = ±6

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