The graph of the function, given one value and the limit

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SUMMARY

The discussion centers on sketching a graph of a function that meets the conditions lim f(x) as x approaches 2 equals 3 and f(2) equals 4. The confusion arises from the misunderstanding that the limit at x=2 indicates the function's value at that point. Instead, the graph should depict a discontinuity at x=2, where the function approaches 3 but is defined at 4, creating a "hole" in the graph. This illustrates the concept of limits versus function values in calculus.

PREREQUISITES
  • Understanding of limits in calculus
  • Familiarity with graphing functions
  • Knowledge of discontinuities in functions
  • Basic concepts of absolute value functions
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  • Study the concept of removable discontinuities in functions
  • Learn how to sketch graphs of piecewise functions
  • Explore the formal definition of limits in calculus
  • Investigate the properties of absolute value functions and their graphs
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Students studying calculus, particularly those grappling with limits and function continuity, as well as educators seeking to clarify these concepts in a teaching context.

Emworthington
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Homework Statement


Sketch a graph of a function that satisfies the stated conditions:
lim f(x) [as x approaches 2) = 3 and f(2) = 4.


Homework Equations


N/A


The Attempt at a Solution


I know that the graph looks like an absolute value function (because the professor told me), but I'm really confused when I draw it out. As x approaches 2, the limit is 3. To me, this meant that the vertex of the graph is the coordinate (2,3) since 3 was the limit. However, when x=2, y=4, and the points can't coexist on this graph. What am I figuring/looking at wrong?
 
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Emworthington said:

Homework Statement


Sketch a graph of a function that satisfies the stated conditions:
lim f(x) [as x approaches 2) = 3 and f(2) = 4.

Homework Equations


N/A

The Attempt at a Solution


I know that the graph looks like an absolute value function (because the professor told me), but I'm really confused when I draw it out. As x approaches 2, the limit is 3. To me, this meant that the vertex of the graph is the coordinate (2,3) since 3 was the limit. However, when x=2, y=4, and the points can't coexist on this graph. What am I figuring/looking at wrong?
If this is the problem as given, it has nothing to do with an absolute value function.

It's a graph with a "hole" in it.
 

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