# Draggable points that create an equation. Equation populates a table

**URL:** <https://cl.desmos.com/t/draggable-points-that-create-an-equation-equation-populates-a-table/4141>\
**Category:** Questions\
**Created:** [March 10, 2022, 4:57pm UTC](https://cl.desmos.com/t/draggable-points-that-create-an-equation-equation-populates-a-table/4141 "2022-03-10T16:57:31Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Gina\_Catrine](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/gina_catrine/32/2081_2.png) [@Gina\_Catrine](https://cl.desmos.com/u/Gina_Catrine)\
**Post date:** [March 10, 2022, 4:57pm UTC](https://cl.desmos.com/t/draggable-points-that-create-an-equation-equation-populates-a-table/4141/1 "2022-03-10T16:57:31Z")

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> **[Draggable Points Populate Table • Activity Builder by Desmos](https://teacher.desmos.com/activitybuilder/custom/622a2d3632fce92a0813046b?lang=en)**
>
> by Gina Catrine

I want the students to drag the points to create ANY parabola that could model the hammock in the graph. I would like the equation of their parabola to populate the table (or anywhere tbh) so students can find the vertex of their specific parabola.

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**Author:** ![sergeballif](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/sergeballif/32/231_2.png) [@sergeballif](https://cl.desmos.com/u/sergeballif)\
**Post date:** [March 10, 2022, 7:41pm UTC](https://cl.desmos.com/t/draggable-points-that-create-an-equation-equation-populates-a-table/4141/2 "2022-03-10T19:41:06Z")

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The easiest solution is to display the equation on the graph. Create a point, say at (0,-3), with the label `y=${a}(x-${h})^2+${k}` inside of backticks, and you’ll see the formula on the graph. You can hide the point so you only see the equation.

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**Author:** ![Gina\_Catrine](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/gina_catrine/32/2081_2.png) [@Gina\_Catrine](https://cl.desmos.com/u/Gina_Catrine)\
**Post date:** [March 11, 2022, 12:28pm UTC](https://cl.desmos.com/t/draggable-points-that-create-an-equation-equation-populates-a-table/4141/3 "2022-03-11T12:28:24Z")

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great thanks so much!