Give algebraic evidence to show that the relation x2 + y2 = 9 is not a function

Chapter 2, Problem 4

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QUESTION:

Give algebraic evidence to show that the relation x2 + y2 = 9 is not a function.

Questions & Answers

QUESTION:

Give algebraic evidence to show that the relation x2 + y2 = 9 is not a function.

ANSWER:

Step 1 of 2

We can use algebraic test to check whether the equation is function or not

Algebraic test states that

If there exists at least one value of  for which the relation gives more than one value of .

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