Movable Points

You can change a static point to a movable point by clicking and long holding the icon next to the expression list. A style editor will pop up with different drag options.

Another way to create a movable point is to enter a point with a parameter for one or both coordinates. Click and drag the point around the graph to change the value of the parameter(s).

 

To make graphs more interactive, use parameters from your movable point in your expressions.

Explore this graph here: https://www.desmos.com/calculator/slkjzmm3ly

 

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36 Comments

  • 0
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    Luke Kilchenman

    Is it possible to find the t value(s) for a certain point on a parametric curve? In particular, I'd like to find the two adjacent values for the single intersection on the Cayley sextic.

  • 1
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    J Fahlander

    Sara Rezvi,

    This is obviously too late for you, but in case someone else also wants to move a picture along a function, here is one way you could solve the Angry BIrds problem.  

    https://www.desmos.com/calculator/xn4xh2hq6u

  • 0
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    Aevans6

    What happens if I run out of letters to use in my parameters?

  • 0
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    Aapeli Syrén

    so, I used the design by a user called Samuel Nelson and made the chess game interactive

    https://www.desmos.com/calculator/7andbqvx2g

  • 0
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    Carson Perkins

    just click this link and watch the magic happen...

    https://www.desmos.com/calculator/ci9u0dyklo

    Edited by Carson Perkins
  • 0
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    Mr Knex13

    Here is a graph I made which makes it super duper easy to find the slope, distance, and line created by any two points:

    https://www.desmos.com/calculator/vxzh0xhwnh

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