Comments on: Desmos Hack: One-Variable Inequalities

By: Michael Fenton

Michael Fenton — Sat, 10 Nov 2018 18:21:27 +0000

Hi Shriya, thanks for stopping by, and for your question! What if the movable point was separate from the display? Here’s my attempt: https://www.desmos.com/calculator/czghfmvonk

By: Shriya

Shriya — Sat, 10 Nov 2018 15:03:38 +0000

Hello Michael,

Thank you for showing how to graph one variable inequality. I have a question, I want to be able to drag the point and shaded area along the x axis. In graph 3 I turned on the drag (horizontal) feature for the point (4,0). But for graph 4, it disables the drag if the point (-2,0) is an open circle. Any suggestions on how to over come this? Appreciate your help. Thanks Shriya.

By: sanyu

sanyu — Mon, 24 Sep 2018 15:49:49 +0000

Thank you! This is so helpful!

By: Michael Fenton

Michael Fenton — Fri, 09 May 2014 14:46:41 +0000

@mrdardy, the y inequalities are there to provide the shading between the endpoints. Without that line, I would just be staring at two points on the x-axis. What I’ve really done is create a shaded rectangle, but the height is small enough that it just looks like a thick line.

By: mrdardy

mrdardy — Fri, 09 May 2014 10:17:07 +0000

Michael

Are the y inequalities in the last few screenshots simply there to scale the window you are looking at? What would Desmos do without those y limitations? I’ll be trying this myself now that I thought of the question.