Before revision: upalt=Examples of two cardinal utility functions|A simple example of two cardinal utility functions u (first column) and v (second column) whose values in all circumstances are related by In economics, a cardinal utility function or scale is a utility index that preserves preference orderings uniquely up to positive affine transformations.
After revision: In economics, a cardinal utility function or scale is a utility index that preserves preference orderings uniquely up to positive affine transformations.