Why do teachers use graphing calculators in class and recommend to use in home.

I am going to keep it short. The calculators are more complex. However, they can do a lot that a regular calculator cannot. Learning to use a graphing calculator is like learning algebra. It is very complex. I used one back when I went to high school. You can learn a lot from these calculators as they are incredibly useful. You can store complex formulas. You can solve complex formulas simply by filling in the variables. You can also play games on the calculator *snicker