Find the axis of symmetry of the given function.f(x) = -3x2 + 2x
A. x = -1
B. x = - 
C. x = 
D. x = - 
Answer: C
Mathematics
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Solve the problem.The sales of a mature product (one which has passed its peak) are given by the function 
where t is time in years. Find the sales after 15 years if 
and 
A. 1882 B. 30,948 C. 1541 D. 941
Mathematics
Determine whether or not the function is one-to-one.f(x) = 4x2 + x
A. No B. Yes
Mathematics
A rectangle is bounded by the x-axis and the semicircle
(see figure).
Select the area A of the rectangle as a function of x, and determine the domain of the function.
Mathematics
Solve the system of equations by Gauss-Jordan elimination.
A. {(-5, 5, -1)} B. {(-1, 5, -5)} C. {(-5, -1, 5)} D. ?
Mathematics