Evaluate the expression without a calculator.
-4
A. - 
B. 
C. 
D. - 
Answer: B
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Solve the system by elimination.y2 + 4x2 = 21y2 - x2 = 1
A. (3, 
), (3, -
), (-3, 
), (-3, -
)
B. (2, -
), (2, 
)
C. (2, 
), (-2, 
)
D. (2, 
), (2, -
), (-2, 
), (-2, -
)
Use elimination by substitution to find the solution for the following system.
A. x = -2, y = -4 B. x = 1, y = -4 C. x = -1, y = -5 D. The system is inconsistent.
Select the region determined by the constraints. Then find the maximum value of the objective function (if possible) and where it occurs, subject to the indicated constraints.
?
Objective function:
?
?
Constraints:
?
?
A. 
Maximum at (4, 0): 28.00
B.
Maximum at (8, 0): 2.00
C.
Maximum at (16, 0): 112.00
D.
No maximum
E.
Maximum at (0, 8): 1.00
Select the curve represented by the parametric equations. (indicate the orientation of the curve)
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
