Better explain intrinsic Linearity of models for non-math students

[mhasoba]

e.g., https://www.datasciencecentral.com/learn-the-concept-of-linearity-in-regression-models/#:~:text=A%20function%20is%20said%20to,B2%20%2C%20or%20B2%20%2F%20B1)

[mhasoba]

reopened - still needs to be addressed