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Graph -3x^2+12y^2=84. what are the domain and range?
I already know the domain is all real numbers and the range is {y|y≤-√7 or y≥√7}
I just need to find out how you get to that.

Respuesta :

sqdancefan

Explanation:

Written in standard form, the hyperbola's equation is ...

... y^2/7 - x^2/28 = 1

Then the ends of the transverse axis are located at y = ±√7. The region between these values is excluded from the range of the relation.

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