Can someone please help me on a question for my maths homework?

well, the first part of it you need a piece of graph paper. What you would do it to trace one up and down line and then about halfway of the up and down line, draw a side to side line intersecting the first line. This is a coordinate plane. If you don't understand that part, then google"coordinate plane" you will find an example. Then the numbers. for example, (-1, -2) you would start where the two lines intersect or the origin. because it is a negative number, you would count to the left one position. Then for the -2 you would go down two position. Remember the saying over and up.