Nonlinear regression uses logarithmic functions, trigonometric functions, exponential functions, power functions, Lorenz curves, Gaussian functions, and other fitting methods. Both linear and ...

Function definition and graph of linear/nonlinear functions such as quadratic, cubic, absolute value, piecewise-defined, rational, and power function. Additional topics with functions included such as ...

Conversely, a negative linear relationship would show a downward line on a graph. If one variable increases then the other variable decreases. A nonlinear relationship can be seen by scatter plots ...