Graph the hyperbola. Give the coordinates of the center as well as the values of a and b.
- 
= 1
A. center (1, -1), a = 7, b = 8
B. center (1, -1), a = 7, b = 8
C. center (-1, 1), a = 7, b = -1
D. center (-1, 1), a = 8, b = 7
Answer: B
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