I am working to try and get this activity to give the check mark when students have the line of best fit within 2.5% of the actual y-intercept. This that I am sharing is my problem solving.
When I move the green points in top graph and then click graph the line of best fit button, it does collect both the slope and y-intercept of the graph.
The bottom graph is showing the actual line of best fit and when I click the exact line of best fit of the button, I know it is collecting the slope and y-intercept. However, it will not give me a check mark until I move one of the purple dots on the graph. I can’t figure out why that is.
Any help would be appreciated.