This is a dynamic demonstration to illustrate the concept of elasticity.[br]View 1 show the demand price function with the revenue function.[br]View 2 moves in where revenue is an area determined by price and quantity.[br]View 3 changes the scale to look at both price and scale in units of the measurement at P0. Tne the demand price line has been converted to a line whose slope int eh reciprocal of elasticity.

It is used in conjunction with [br]Musiness Calculus with Excel[br][br]https://mathstat.slu.edu/~may/ExcelCalculus