Infinite limit of absolute value

In summary, an infinite limit of absolute value is a mathematical concept that describes the behavior of a function as its input approaches infinity. This type of limit is calculated by evaluating the function at increasingly large values of the input and observing the behavior of the output. It is significant because it can provide information about the function's horizontal asymptote and its unbounded behavior. Not all functions have an infinite limit of absolute value, as it is only applicable to certain types of functions. This type of limit differs from a regular limit as it represents the behavior of a function as the input approaches infinity, rather than a specific value.
  • #1
tsumi
16
0

Homework Statement



i just want to know one value that i can't find anywhere, and would love some help

Homework Equations



[tex]
\lim_{x\rightarrow\ -\infty}|x|}[/tex]

The Attempt at a Solution


thanks
 
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  • #2
If you look at the graph of y = |x|, the limit is pretty obvious.
 
  • #3
As x goes to -infinity, it must be negative! For negative x, |x|= -x. What is the limit [itex]\lim_{x\rightarrow -\infty} -x[/itex]?
 

Related to Infinite limit of absolute value

What is an infinite limit of absolute value?

An infinite limit of absolute value is a mathematical concept that represents the behavior of a function as its input approaches infinity. In this case, the function is an absolute value function, which means that it always outputs a positive value regardless of the input. An infinite limit of absolute value occurs when the output of the function continues to increase without bound as the input becomes increasingly large.

How is an infinite limit of absolute value calculated?

The calculation of an infinite limit of absolute value involves evaluating the function at increasingly large values of the input, and observing the behavior of the output. If the output continues to increase without bound, then the infinite limit of absolute value is positive infinity. If the output decreases without bound, then the infinite limit is negative infinity. If the output oscillates between positive and negative infinity, then the infinite limit does not exist.

What is the significance of an infinite limit of absolute value?

An infinite limit of absolute value provides valuable information about the behavior of a function as its input approaches infinity. It can help determine if the function has a horizontal asymptote, which is a line that the function approaches but never reaches. It can also indicate if the function grows or decreases without bound, which can have implications for real-world applications.

Can an infinite limit of absolute value exist for any function?

No, an infinite limit of absolute value only exists for certain types of functions, namely those that have unbounded behavior as the input approaches infinity. This includes functions such as polynomial functions with a degree greater than or equal to 1, exponential functions, and logarithmic functions.

How is an infinite limit of absolute value different from a regular limit?

An infinite limit of absolute value is different from a regular limit in that it represents the behavior of a function as the input approaches infinity, whereas a regular limit represents the behavior of a function as the input approaches a specific value. Additionally, an infinite limit of absolute value can only result in positive or negative infinity, while a regular limit can approach any real number or may not exist at all.

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