Points, Vectors, and Functions True or False

1.	Which of the following statements is true? -> The equation y = x² describes y as a function of x. True False
2.	We say y = f(x) is a function of x if -> there is only one possible y for each x. True False
3.	Which of the following functions is bounded above but not bounded below? -> True False
4.	We say a function f(x) defined on the whole real line is bounded below if -> There is a real number K such that f(x) ≥ K for all real x. True False
5.	Which of the following statements is FALSE? -> If a function is non-decreasing, that function must also be strictly increasing. True False
6.	Which of the following graphs shows a function that is non-increasing but is not strictly decreasing? -> True False
7.	Which of the following graphs shows an even function? -> True False
8.	Which of the following functions is odd? -> f(x) = x + x True False
9.	Which of the following statements is true? -> It is possible for a function to be neither even nor odd. True False
10.	Which graph shows a function that is strictly decreasing, odd, and bounded both above and below? -> B True False

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