Find the axis of the graph of the function.f(x) = 4(x - 
)2 + 10
A. x = -
B. x = -7
C. x = 7
D. x = 
Answer: D
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For the given polar equation, write an equivalent rectangular equation.r = 
A. 9x - 7y = 1
B. 
= 1
C. 
+ 
= 1
D. 9y - 7x = 1
Find the part.6000% of 497 animals
A. 2,982,000 animals B. 29,820 animals C. 298,200 animals D. 2982 animals
Find the equation of the tangent line to the curve when x has the given value.f(x) = 
; x = 5
A. y = -39x - 80
B. y = - 
+ 
C. y = 13x - 16
D. y = 
+ 
Solve the problem.The cost in millions of dollars for a company to manufacture x thousand automobiles is given by the function C(x) = 4x2 - 24x + 72. Find the number of automobiles that must be produced to minimize the cost.
A. 6 thousand automobiles B. 12 thousand automobiles C. 3 thousand automobiles D. 36 thousand automobiles