You can use the code below to embed the desmos graphing calculator in your formatives.
You will need to remove the space between the < and the iframe
< iframe src=“https://www.desmos.com/calculator” style=“border:0px #ffffff none;” name=“myiFrame” scrolling=“no” frameborder=“1” marginheight=“0px” marginwidth=“0px” height=“400px” width=“600px” allowfullscreen>
So apparently just trying to past raw code into this forum does not work quite like I wanted. But I created a formative with the three different calculators that Desmos offers with the raw code that you can copy/paste.