okay, so math(adsbygoogle = window.adsbygoogle || []).push({});

it says...

Determine an equation in standard from for each hyperbola...

centre (-2,1), one focus (-4,1), length of conjugate axis 4

what i figured out... but its wrong... cuz i cant figure out the answer!!

(x+2)^2 - (y-1)^2 = 1

a^2_____b^2

conjugate axis is 4 so co-ordinates for the co-vertices or vertices should be

(-2,3), (-2,-1)

so then to find find the a or b value... i use

c^2=a^2+b^2

2^2=a^2+2^2

but 4-4=0.... and thats impossible??? i got stuck here...

help plz... thank you in advance.

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# Homework Help: Easy speasy but i dont get it.

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