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 = 6
, y2 = -6
B. y1 = 
, y2 = - 
C. y1 = 
, y2 = - 
D. y1 = 
, y2 = - 
Answer: A
Mathematics
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A. 206 B. 227 C. 217 D. 216
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Use the vertical line test to determine whether or not the graph is a graph in which y is a function of x.
A. function B. not a function
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List the intercepts of the graph.Tell whether the graph is symmetric with respect to the x-axis, y-axis, origin, or none of these. 
A. intercept: (0, 6) symmetric with respect to y-axis B. intercept: (6, 0) symmetric with respect to x-axis C. intercept: (0, 6) symmetric with respect to origin D. intercept: (6, 0) symmetric with respect to y-axis
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Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A. 
B. 
C. 
D. 
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