http://www.mirror.co.uk/news/uk-news/vending-machine-win-trick-video-170550#.UtnWlWQo4y4
we all know that we can buy one thing by the time on the vending machine and each thing has a button and a price represented. So in each transaction we can get one and only one out put and here the function has appeared. However, in this link the vending machine is getting more than one out put and function test is failing in this case.
marwa,
ReplyDeletethis is a perfect example for illustrating a relationship that is not a function! however, you forgot to provide an example illustrating a relationship that IS a function.
professor little