On the left you have the equation of a hyperbola, and the right arrow is what the equation of the hyperbola translates into, which is your function
OpenStudy (jhannybean):
To find the foci and vertices, we need to identify what the center is.
center : \((h,k)\)
OpenStudy (anonymous):
That's wrong, sorry.
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OpenStudy (anonymous):
hmm
OpenStudy (jhannybean):
?...
OpenStudy (anonymous):
-4,-3
OpenStudy (jhannybean):
Good.
OpenStudy (jhannybean):
Now the foci lie along the horizontal transverse axis, what you know as the major axis. Therefore to find their location, we use the formula \[(h+c),k ~,~ (h-c),k~~, c^2=a^2+b^2 \longrightarrow c=\sqrt{a^2+b^2}\]
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OpenStudy (anonymous):
c=5
OpenStudy (anonymous):
(1, -3,) (-9,-3)
OpenStudy (jhannybean):
To find the vertices, you use the equation \[{(h+a),k} ~,~ {(h-a),k}\]
OpenStudy (anonymous):
(-1, -3) (-7,-3)
OpenStudy (anonymous):
?
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