Find all local extreme values of the given function and identify each as a local maximum, local minimum, or saddle point.
A. 
local maximum
B. 
local maximum; 
local minimum
C. 
saddle point; 
saddle point
D. 
local minimum; 
saddle point; 
saddle point; 
local maximum
Answer: D
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Determine whether the argument is valid or invalid.If I hear that poem, it reminds me of my mother. If I get sentimental, then it does not remind me of my mother. I get sentimental. Therefore, I don't hear that poem.
A. Invalid B. Valid
Solve the quadratic inequality. Write your answer in interval notation.x2 - 2x - 8 ? 0
A. [-2, 4] B. [4, ?) C. (-?, -2] ? [4, ?) D. (-?, -2]
Use a graphing calculator to solve the equation. Round to two decimal places.ex = 9
A. 0.95 B. 2.20 C. 8103.08 D. 392.55
Write the new function.The linear function f(x) = 233x + 6320 provides an approximation of the annual cost (in dollars) to rent an apartment at the Leisure Village Retirement Community, where x = 1 represents 1973, x = 2 represents 1974, and so on. Write a new function, g(x), that yields the same f(x)-values when the exact year number is entered.
A. g(x) = 233(x - 1972) + 6320 B. g(x) = 233(1973 - x) + 6320 C. g(x) = 233(1972 - x) + 6320 D. g(x) = 233(x - 1973) + 6320