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OpenStudy (anonymous):
What is the center of (x+5)^2/81-(y+7)^2/121=1? (–7, –5) (–5, –7) (5, 7) (7, 5)
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OpenStudy (anonymous):
(-5,-7)
OpenStudy (anonymous):
how'd you get it?
OpenStudy (anonymous):
(x+h)^2+(y+k)^2=r^2,, so center is (-h,-k)
OpenStudy (anonymous):
thnx, bro!
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