Question

determination liner non liner

Answer 1

Nonlinear Regression Equations. While a linear equation has one basic form,nonlinear equations can take many different forms. ... Thetas represent the parameters and X represents the predictor in the nonlinear functions. Unlike linear regression, these functions can have more than one parameter per predictor 

Answer 2

linear
In linear no exponents are not higher than 1 and In linear graph function is a straight line.

non linear
In non linear there will be at least one exponents higher than 1 and In non linear graph function is cruved line.