SOLUTION: What is the radius of x^2 -y^2=4

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Question 1126458: What is the radius of x^2 -y^2=4
Found 3 solutions by addingup, ikleyn, MathTherapy:
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 - y^2 = 4
The equation is;
x2 + y2 = r2
take the square root on all sides:
x - y = 2 this is your radius

Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
The equation is NOT an equation of a circle.

It is an equation of a hyperbola.

Therefore, in your post the question is not relevant to the given part,
and, in opposite, the given part is not relevant to the question.


The post is defective.



Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
What is the radius of x^2 -y^2=4
HYPERBOLA.