Sketch the surface z = f(x,y).f(x, y) = -x2 - y2
A. 
B. 
C. 
D. 
Answer: A
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The graph below is one complete cycle of the graph of an equation containing a trigonometric function. Find an equation to match the graph. If you are using a graphing calculator, graph your equation to verify that it is correct.
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A. ?
B. ?
C. ?
D. ?
E. ?
Solve the problem.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height h of the outside walls.
a = b = 8 m
A. 17 m B. 39 m C. 111 m D. 10.5 m
Solve the equation.(x - 3)(x + 5) = 0
A. {3, -3, 5, -5} B. {3, -5} C. {-3, 5} D. {3, 5}
Use addition to check the subtraction problem. If the answer is incorrect, find the correct answer.
322
A. Incorrect; should be 321 B. Incorrect; should be 332 C. Incorrect; should be 422 D. Correct