[b](Updated: 26 May 2012)[/b][br]At which points would the function F = 2x + 3y be maximum subject to the constraints?[br][br]Change F to 3x + 2y.[br]Would F = 3x + 2y be maximum at the same point?[br][br]Explain your findings by dragging the line F = 0.

Anthony Or. GeoGebra Institute of Hong Kong.