# Finding max/min values of student sketch

**URL:** <https://cl.desmos.com/t/finding-max-min-values-of-student-sketch/4277>\
**Category:** Questions\
**Tags:** sketch\
**Created:** [May 6, 2022, 5:48pm UTC](https://cl.desmos.com/t/finding-max-min-values-of-student-sketch/4277 "2022-05-06T17:48:10Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Daniel\_Grubbs](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/daniel_grubbs/32/719_2.png) [@Daniel\_Grubbs](https://cl.desmos.com/u/Daniel_Grubbs)\
**Post date:** [May 6, 2022, 5:48pm UTC](https://cl.desmos.com/t/finding-max-min-values-of-student-sketch/4277/1 "2022-05-06T17:48:10Z")

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I don’t have a screen to share at the moment, but was wondering if there is an efficient way to determine the global maximum and/or minimum of a student’s sketch. My current approach is to use:

```auto
numberList(`w_0`): this.sketch.yValuesAt(0)

```

and repeat for multiple x values, then to join all the lists in the graph and use the max( ) and min( ) functions, but I feel like there should be an easier way. My intent is to adjust the range of a separate graph.

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**Author:** ![JayChow](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/jaychow/32/1674_2.png) [@JayChow](https://cl.desmos.com/u/JayChow)\
**Post date:** [May 6, 2022, 5:56pm UTC](https://cl.desmos.com/t/finding-max-min-values-of-student-sketch/4277/2 "2022-05-06T17:56:20Z")

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We covered this in our CL newsletter a few months ago: [A Better Way To Interpret Sketches](http://6634586.hs-sites.com/a-better-way-to-interpret-sketches)

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<div class="post-metadata">

**Author:** ![Daniel\_Grubbs](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/daniel_grubbs/32/719_2.png) [@Daniel\_Grubbs](https://cl.desmos.com/u/Daniel_Grubbs)\
**Post date:** [May 6, 2022, 6:07pm UTC](https://cl.desmos.com/t/finding-max-min-values-of-student-sketch/4277/3 "2022-05-06T18:07:12Z")

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Awesome! Thanks. I figured there was a way.

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**Author:** ![lori\_joseph](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/lori_joseph/32/2322_2.png) [@lori\_joseph](https://cl.desmos.com/u/lori_joseph)\
**Post date:** [May 21, 2024, 3:43pm UTC](https://cl.desmos.com/t/finding-max-min-values-of-student-sketch/4277/4 "2024-05-21T15:43:50Z")

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I just tried to access the link “A Better Way To Interpret Sketches”, but I receive the error “Page not found”. Is there another way to find this information? Thank you.