Plotting the graph of y=1/log|x|

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SUMMARY

The discussion focuses on plotting the graph of the function y=1/log|x| efficiently, without manually calculating numerous x and y values. Key strategies include analyzing the asymptotes, determining if the function is even or odd, finding the roots, and calculating the first and second derivatives to understand the function's behavior. Utilizing the graph of y=log|x| can provide insights into the shape of y=1/log|x|, especially for negative values of x.

PREREQUISITES
  • Understanding of logarithmic functions, specifically log|x|.
  • Knowledge of calculus concepts such as derivatives and asymptotes.
  • Familiarity with graphing techniques for functions.
  • Ability to analyze function behavior (increasing/decreasing, concavity).
NEXT STEPS
  • Learn how to find asymptotes for rational functions.
  • Study the properties of even and odd functions in relation to graph symmetry.
  • Explore the process of finding roots of logarithmic functions.
  • Investigate the application of first and second derivatives in graph analysis.
USEFUL FOR

Mathematicians, educators, students studying calculus, and anyone interested in advanced graphing techniques for logarithmic functions.

IEVaibhov
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I was just wondering as to how I can plot the graph of y=1/log|x| without putting a lot of values of x and obtaining corresponding values of y.
I mean, how can I draw this graph using the graph of y=log x or the graph of log|x|? Is there a way?
 
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There are a lot of tools available to let you help you plot the function. Here are some things you can do:

  • Find the asymptotes.
  • Find out if the function is even/odd/none
  • Find the roots of the function.
  • Find the first derivative and see where the function is increasing/decreasing. Find the extremal points.
  • Find the second derivative and see where to function is concave/convex.

This information will help you make an accurate drawing of the function.
 
IEVaibhov said:
I was just wondering as to how I can plot the graph of y=1/log|x| without putting a lot of values of x and obtaining corresponding values of y.
I mean, how can I draw this graph using the graph of y=log x or the graph of log|x|? Is there a way?

Suppose you work out the graph, using sample points, of the function for positive values of x. Is there some way you would automatically know what the graph looks like for negative values of x?
 

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