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complete the squares

How?

(-1 ± , 2)
(2 ± , -1)
(-1, 2 ± )
(2, -1 ± )

Its one of these lol Im just not sure which

|dw:1355058848205:dw|

got this?

Kinda but what are the blank spaces?

there's a "y" missing next to the 50.

oh okay

Pretty sure its A or B right?

got this?

http://en.wikipedia.org/wiki/Hyperbola

mhm :)

got this?

I see :)

now the center of the hyperbola is
\[ \large (\color{red}{2},\color{red}{-1}) \]

is it a horizontal or vertical hyperbola?
how can u tell?

horizontal

the format of the equation.

no.

look at the denominators which is larger? under x? or under y?

x.....

yes. this tells u the hyperbola is horizontal

I said it was horizontal. Is it B?

what is the length of the semi-mayor axis?

it HAS to. do u know why?

because the formula is formatted (h±a,k) for horizontal and that fits? lol

yes. very clever.
u were looking for the foci not the vertices, though.

did u understand?

do it is B? :) and yeah pretty much lol

so*

i hope so.