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Bounded Exercises

Example 1

Determine if the function is (a) bounded above or (b) bounded below.

  • y = cos x

Example 2

Determine if the function is (a) bounded above or (b) bounded below.

  • f(x) = 5

Example 3

 Determine if the function is (a) bounded above (b) bounded below.

  • f(x) = x2

Example 4

Determine if the function is (a) bounded above or (b) bounded below.

  • y = x

Example 5

Determine if the function is (a) bounded above or (b) bounded below.

Example 6

Determine if the function is (a) bounded above or (b) bounded below.

Example 7

 Is the function is (a) bounded above or (b) bounded below?

Example 8

 Is the following function (a) bounded above or (b) bounded below?

Example 9

 Is the following function (a) bounded above or (b) bounded below?

Example 10

Is the following statement true or false?

  • If a function is bounded above it must also be bounded below.

Example 11

Is the following statement true or false?

  • If a function f(x) has an upper bound of M there must be some value of x for which f(x) = M.

Example 12

Is the following statement true or false?

  • If there is some K such that f(x) ≥ K for all x, then the function f(x) is bounded below. 
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