Provide an appropriate response.For the space curve x = t, y = t2, z = t , find the points at which the function f(x, y) takes on extreme values if fx = 64, fy = , and fz = -80t.

A. t = -8 and t = 5
B. t = -16 and t = 10
C. t = 0
D. t = - 4 and t = 


Answer: A

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