Solve. x2 - xy + y2 = 32x2 + xy + 2y2 = 12
A. (1, 0) and (-1, 0)
B. (2, 1) and (1, 2)
C. (2, 1), (-2, -1), (1, 2), (-1, -2)
D. (2, 0), (-2, 0), (1, 0), (-1, 0)
Answer: C
Mathematics
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and 
A. 0
B. 1
C. 
- 
ln 9
D. 5 - 9 ln 9
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A. 27 B. 0 C. 1 D. Undefined
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Determine from the graph whether the function has any absolute extreme values on the interval [a, b].
A. No absolute extrema.
B. Absolute minimum and absolute maximum.
C. Absolute maximum only.
D.
| Absolute minimum only. |
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A. $5000 B. $7000 C. $4500 D. $4000
Mathematics