What is the domain and range of $y=x^2-3$ ?

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Answer 1 · 2016-05-23T11:57:26

Domain ( x value) is any real value
Range (y value) is $y>= ( -3)$ ;

Domain ( x value) is any real value
Range (y value) is $y>=( -3)$ ; As square of any number is positive , so y can not be less than $-3$ [ans]

What is the domain and range of y=x^2-3y=x^2-3?