Write an equation for a function whose graph fits the given description.The graph of f(x) = 
is reflected across the y-axis and vertically shrunk by a factor of 
. This graph is then reflected across the x-axis. Finally, the graph is shifted 2 units upward.
A. y = -
+ 2
B. y = 
C. y = - 
+ 2
D. y = 
+ 2
Answer: C
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Find the length of the indicated portion of the curve.r(t) = (etcos t)i + (etsin t)j + 7etk, -ln 2 ? t ? 0
A. 
B. 
C. 
D. 
Find the indicated fractional part.
of 
A. 
B. 
C. 
D. 
Solve the problem.The number of periods needed to double an investment when a lump sum is invested at 10%, compounded semiannually, is given by n = log1.05 2. Find the number of years before the investment doubles in value, to the nearest tenth of a year.
A. 3.6 years B. 7.1 years C. 14.2 years D. 28.4 years
Find a polynomial function of lowest degree with rational coefficients that has the given numbers as some of its zeros.-4i, 2
A. f(x) = x4 + 12x2 - 64 B. f(x) = x3 - 2x2 + 16x - 32 C. f(x) = x3 - 3x2 + 16x + 32 D. f(x) = x4 - 12x2 + 64