-3x^2+12y^=84

Question

What are the domain and range

My answer

domain: all real numbers

range:

y (less than -) -sqrt7 or sqrt7

Answer 1

-3x^2+12y^=84
3x^2 - 12y^2 = -84
x^2 /28 - y^2 /7 = -1

You have a vertical hyperbola, with vertices
(0,√7) and (0,-√7)

your answer is correct

Answer 2

thank you