Question

PLEASE HELP!!! WILL GIVE BRAINLIEST!!!!

Answer 1

Finding the line of best fit is something a Machine Learning Model would do.

This particular ML model is called "Linear Regressor" or "Linear Regression Model". Look it up and there are definitely calculators for it, as it is relatively simple.

You can also, if you know how to use ML libraries and code, use Python to determine the value of $b$.

Hope this helps.