I am making a Desmos activity where students type intervals of increasing, decreasing, and constant from a graph.
The increasing interval for the graph in the photo below is (-5,-2]… there is no decreasing and the constant is [-2,3].
This is the code:
li1=i1.latex
lde1=de1.latex
lc1=c1.latex
tc1=c1.timeSinceSubmit()
content:
when tc1>0
when li1=`\left[-5,-2\right)` and lde1=`N` and lc1=`\left[-2,3\right]` "Nice work! Head to the next slide."
otherwise "Hmm, one or more of your intervals needs another go. Remember you are answering the question: For what x-values are the y-values increasing/decreasing/constant? Use brackets unless there is an open circle or infinity."
otherwise ""
It is only giving the long otherwise text when I enter all three intervals correctly. I have played around with it enough to know that it is the increasing interval with the one parentheses and one bracket that is the problem, but I cannot figure out how to fix this.
Link to activity: Domain, Range, and Intervals • Activity Builder by Desmos
Thank you!