# \[?\] Plot a logarithmic function?

**URL:** <https://community.wolfram.com/t/plot-a-logarithmic-function/14252>\
**Category:** Questions\
**Tags:** graphics-and-visualization\
**Created:** [June 19, 2019, 4:02pm UTC](https://community.wolfram.com/t/plot-a-logarithmic-function/14252 "2019-06-19T16:02:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sbair4](https://avatars.discourse-cdn.com/v4/letter/s/ad7895/32.png) [@sbair4](https://community.wolfram.com/u/sbair4)\
**Post date:** [June 19, 2019, 4:02pm UTC](https://community.wolfram.com/t/plot-a-logarithmic-function/14252/1 "2019-06-19T16:02:23Z")

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For some reason I am having a lot of trouble graphing a function. The graph will appear, but no line will show up on the graph. I will attach what I am typing in and a picture of what shows up. ANY help would be greatly appreciated!!

 ![Screen Shot 2019-06-18 at 11.28.56 PM.png](https://global.discourse-cdn.com/wolfram/original/3X/e/8/e816d16e9d1b29b8eb4b8de69c4129ec25a4bc67.png)

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**Author:** ![hansmilton](https://yyz1.discourse-cdn.com/wolfram/user_avatar/community.wolfram.com/hansmilton/32/8656_2.png) [@hansmilton](https://community.wolfram.com/u/hansmilton)\
**Post date:** [June 19, 2019, 5:39pm UTC](https://community.wolfram.com/t/plot-a-logarithmic-function/14252/2 "2019-06-19T17:39:44Z")

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f[x\_] := 10 Log[(10 + Sqrt[100 - x^2])/x] - Sqrt[100 - x^2]

 ![Aplot.png](https://global.discourse-cdn.com/wolfram/original/3X/5/b/5bda5c32696274e5f9cd05980a8cb5b2fbab6f44.png)