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Is the equation: x² + y² = 9
a function. Explain.

User Mirelon
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1 Answer

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Answer: x² + y² = 9 is not a function

Step-by-step explanation: In order for an equation to represent a function any single value of x must have at most one corresponding value of y which satisfies the equation. and therefore the equation is not a function.

x^2+y^2=9

if for example x=0

There are two values for y(namely+3 and -3) which satisfy the equation and therefore the equation is not a function

User Puemos
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