State the domain of the rational function. h(x) = 
A. (-?, ?)
B. (-?, 7) ? (7, ?)
C. (-?, -10) ? (-10, 10) ? (10, ?)
D. (-?, -2) ? (-2, 7) ? (7, ?)
Answer: D
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Solve.Assume that in 1985, the annual consumption of pork was about 55 lb per person and that in 1997, it was about 36 lb per person. In addition, assume that consumption is decreasing according to the exponential decay model. Find the value k, and write an exponential function that describes pork consumption after time t, in years. (Round decimals to three places.)
A. k = 0.299; C(t) = 55e0.299t, where t is the number of years since 1985. B. k = 0.035; C(t) = e-0.035t, where t is the number of years since 1985. C. k = -0.035; C(t) = 55e-0.035t, where t is the number of years since 1997. D. k = 0.035; C(t) = 55e-0.035t, where t is the number of years since 1985.
Evaluate the function by using three terms of the appropriate Taylor series.(0.71)-1
A. 1.5179 B. 0.3741 C. 1.3741 D. -0.6259
Write an equation for a function that has a graph with the given characteristics.The shape of y = ?x? is reflected across the y-axis. This graph is then vertically stretched by a factor of 3.1. Finally, the graph is shifted 2 units downward.
A. f(x) = 3.1?-x? - 2 B. f(x) = -3.1?x? - 2 C. f(x) = 2?-x? - 3.1 D. f(x) = 3.1?-x? + 2
Write the equation of a function that has the given characteristics.The graph of y = 
, shifted 6 units downward
A. y = 
B. y = 
- 6
C. y = 
+ 6
D. y = 