At what points is the given function continuous?f(x, y) = 
A. All (x, y) such that x ? - y
B. All (x, y) ? (0, 0)
C. All (x, y) such that x ? y
D. All (x, y)
Answer: A
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Solve the system of equations graphically using a graphing calculator. Find all values to the nearest hundredth.y = -4x2y = x2 - 5
A. x = 1.00, y = -4.00; x = -1.00, y = -4.00 B. x = 1.29, y = -6.67; x = -1.29, y = -6.67 C. x = 1.00, y = -4.00 D. No solution
Solve the problems.If a spring stretches 8 meters when a 3-kilogram weight is attached to it, how much will it stretch when a 21-kilogram weight is attached to it?
A. 56 meters B. 58 meters C. 55 meters D. 59 meters
Find the critical point(s) of the function. Then use the second derivative test to classify the nature of each point, if possible. Finally, determine the relative extrema of the function.
?
?
A. 
; relative maximum value: 
B. 
; relative maximum value: 
C. 
; relative maximum value: 
For the equation, find the slope. If the slope is undefined, state this.-3y = -2x - 15
A. 
B. 
C. - 
D. - 