Identify and graph the conic section. Label the center and/or vertex as appropriate.
+ 
= 1
A. ellipse; center (0, 0);
(-2, 0), (2, 0), (0, -1), (0, 1)
B. ellipse; center (0, 0);
(-1, 0), (1, 0), (0, -2), (0, 2)
C. hyperbola; center (0, 0);
(-1, 0), (1, 0)
D. hyperbola; center (0, 0);
(-2, 0), (2, 0)
Answer: A
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Subtract.2 + (-12) - (-20) + 16
A. 26 B. 10 C. -14 D. -6
Perform the division.
A. 7x + 3 - 
B. 21x + 9 - 
C. 7x2 + 3x - 
D. 7x - 8
Find the probability of the event if a single choice is made from a bag.A bag contains 15 balls numbered 1 through 15. What is the probability of selecting a ball that has an even number when one ball is drawn from the bag?
A. 
B. 
C. 
D. 7
Solve.The manager of a candy shop sells chocolate covered peanuts for $8 per pound and chocolate covered cashews for $14 per pound. The manager wishes to mix 40 pounds of the cashews to get a 
mixture that will sell for $12 per pound. How many pounds of peanuts should be used?
A. 60 pounds B. 30 pounds C. 20 pounds D. 10 pounds