(X-2)^2-(y+1)^2=16 what is the equation below?

A parabola
B square
C circle
D eclipse
E hyperbola opening up and down
F hyperbola opening left and right

Question

(X-2)^2-(y+1)^2=16 what is the equation below?

A parabola
B square
C circle 
D eclipse 
E hyperbola opening up and down
F hyperbola opening left and right

anonymous · Answer

I think it's C if I'm not mistaken

luigi0210 · Answer

Parabola: Has one squared term
Ellipse: positive
Hyperbola: negative
Circle: same value

anonymous · Answer

sorry ı do not see minus sign

luigi0210 · Answer

|dw:1371058162140:dw|

anonymous · Answer

It's "F" because you have x^2 - y^2 

If it were y^2 - x^2, then it would open up and down.

anonymous · Answer

All good now, @jslp3z  ?

anonymous · Answer

Thanks  (: I'm good

anonymous · Answer

You can jump right away to choices "E" and "F" because both y and x are squared and there's the minus sign.  Good tip for taking a test fast.