Algebrator is what you are looking for. You can use this to enter questions pertaining to any topic and it will give you a step-by-step solution to it. Try out this program to find answers to questions in graphing and see if you get them done faster.
Algebrator is a very user friendly product and is surely worth a try. You will find several interesting stuff there. I use it as reference software for my math problems and can say that it has made learning math more fun .