Identify the open intervals where the function is changing as requested.Increasing
A. (-?, 0)
B. (0, 3)
C. (-?, -1)
D. (-1, 0)
Answer: B
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Give an appropriate answer.Given the function f(x, y, z) and the positive number ? as in the formal definition of a limit, find a positive number ? as in the definition that insures 
< ?.f(x, y, z) = x + y - z ; ? = 0.09
What will be an ideal response?
The graph of a function f is given. Use the graph to answer the question.Find the numbers, if any, at which f has a local maximum. What are the local maxima?
A. f has a local maximum at x = 0; the local maximum is 1 B. f has a local maximum at x = -? and ?; the local maximum is -1 C. f has no local maximum D. f has a local maximum at -?; the local maximum is 1
The perimeter of a rectangle is 
m, and its area is 
. Find its dimensions.
A. 
B. 
C. 
D. 
E. 
Evaluate the expression with the given replacement values.-7x3y when x = 4 and y = -4
A. 1792 B. 336 C. 448 D. -1792