Given the set sketched on the number line, identify the type of interval (open, closed, half-open, open infinite, closed infinite), write the set using set-builder notation, and write the set using interval notation.
A. open infinite interval; {x|x > 5}; (5, ?)
B. open infinite interval; {x|x < 5}; (-?, 5)
C. closed infinite interval; {x|x ? 5}; (-?, 5]
D. closed infinite interval; {x|x ? 5}; [5, ?)
Answer: B
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A. 576? B. 288? C. 72? D. 144?
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A. 3.07 B. 2.07 C. 4.07 D. 9.20
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A. 
B. 1600
C. 
D. 
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? 6x is concave upward and where it is concave downward. Also, find all inflection points of the function.
What will be an ideal response?