Find all local extreme values of the given function and identify each as a local maximum, local minimum, or saddle point.
A. f(-8, 3) = 227, local maximum
B. f(-8, -3) = 191, saddle point
C. f(8, -3) = -65, local minimum
D. f(8, 3) = -29, saddle point
Answer: C
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A. y = 
x + 
B. y = 
x + 
C. y = 3x - 1
D. y = 
x - 
Find the nth term an of the geometric sequence.an = 5,764,801; 7, 49, 343, . . . .
A. n = 7 B. n = 9 C. n = 8 D. n = 6
Simplify the power of i to i, 1, -i or -1.
A. -1 B. 1 C. -i D. i
Solve.Regrind, Inc. regrinds used typewriter platens. The variable cost per platen is $1.70. The total cost to regrind 60 platens is $400. Find the linear cost function to regrind platens. If reground platens sell for $10.10 each, how many must be reground and sold to break even?
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