If a function has a horizontal asymptote at y = a, then BOTH lim x → ∞ f ( x ) = a AND lim x → − ∞ f ( x ) = a. if g ( x ) = 5 cos ⁡ x, then lim x → ∞ g ( x ) does not exist. If a function h ( x ) has the domain ( − ∞ , 0 ] and h ( x ) has no horizontal asymptote, then it must be the case that either lim x → − ∞ h ( x ) = − ∞

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter3: Functions
Section3.3: More On Functions; Piecewise-defined Functions
Problem 98E: Determine if the statemment is true or false. If the statement is false, then correct it and make it...
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  1. Determine if each of the following statements is true or false.  If true, explain why.  If false, explain why and/or provide a counter example.
    1. If a function has a horizontal asymptote at y = a, then BOTH lim x → ∞ f ( x ) = a AND lim x → − ∞ f ( x ) = a.
    2. if g ( x ) = 5 cos ⁡ x, then lim x → ∞ g ( x ) does not exist.
    3. If a function h ( x ) has the domain ( − ∞ , 0 ] and h ( x ) has no horizontal asymptote, then it must be the case that either lim x → − ∞ h ( x ) = − ∞ OR lim x → − ∞ h ( x ) = ∞
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