Question

Can someone explain how I do these please ?

Answer 1

It is very difficult to explain on a computer or without actually being face to face. It would be best if you could ask your parents or your teacher since I bet they could give you a better answer than anyone on here. 

Answer 2

So first of all you need to find what plus 2 equals for which would be x . Then what plus 2 equals -1 . Then just graph your answers . Thats how i usually do it