Find the domain of the rational function.f(x) = 
A. all real numbers except 6
B. all real numbers except 9, 6
C. all real numbers except -9
D. all real numbers except 9
Answer: D
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Factor.x2 - 8x + 64
A. (x + 8)2 B. (x - 8)2 C. (x + 8)(x - 8) D. Prime
Solve the problem.Find the derivative of the function 
at the point 
in the direction in which the function decreases most rapidly.
A. - 
B. - 
C. - 
D. - 
Solve the problem.The logistic growth function f(t) = 
describes the population of a species of butterflies 
after they are introduced to a non-threatening habitat. How many butterflies were initially introduced to the habitat?
A. 2 butterflies B. 6 butterflies C. 520 butterflies D. 70 butterflies
Find the center and radius of the circle and sketch its graph.(x + 2)2 + (y - 1)2 = 4
A. (h, k) = (2, -1), r = 2
B. (h, k) = (-2, 1), r = 2
C. (h, k) = (2, 1), r = 2
D. (h, k) = (-2, -1), r = 2