Hi all,

I’m looking to add a Desmos activity to a lab that I do with students, but I’m not sure if what I’d like to do is possible.

Question 1: (this is the part I’m not sure if it’s possible) On slide 4, I have the students do a linear regression on the data that they have entered (on slide 2). This seems to be working perfectly - the data transfers from slide 2 and the regression line appears. My question is whether I can use the numbers (specifically slope and y-intercept) from the regression line on slide 5. I want the students to identify the slope and intercept and compare to the equation produced on slide 4. (In later slides, I want do something similar but with the exponential and logistic regressions - I figure that if I know if/how it works here, I can adapt to those later slides).

Question 2: On slide 16, I’d like the second column of the table to automatically calculate the values. A will be a constant that I’ll be able to program in (39 for this year) but I will come from the data entered on slide 2.

Question 3: On slide 21, I want to compare what the students enter in the fourth column to a calculation that is (2nd col - 3rd col)/3rd col. Right now, I have an incorrect computation in there that would actually calculate the number and fill in the table. This would be my 2nd option, but I’d rather have the students calculate it and have Desmos check their answer.

Note: several of the slides are unfinished, as I wanted to make sure I could get the computations working like I’d like before finishing the other pieces.

Thank you for everyone for your help and advice.

https://teacher.desmos.com/activitybuilder/custom/671a48f7ac829761857c6545