The hyperbola shown in the calculator-generated graph was graphed in function mode with a square viewing window. What are the two functions y1 and y2 that were used to obtain the graph whose equation is given?
10
-10
A. y1 = 7
, y2 = -7
B. y1 = 7
, y2 = -7
C. y1 = 3
, y2 = -3
D. y1 = 7
, y2 = -7
Answer: D
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x - 1
A. m = - 
, y-intercept: (0, -1)
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, y-intercept: (0, 0)
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