The more plot point the better but you must have at least three points, a labeled X-axis and Y-axis, and a table for the data to be organized into.
The answer is D) Yes; because x and y must be integers, and integers are rational.
Well first you have to know what i is. i is the sqrt of -1 so try doing 3+5(sqrt-1)/1+sqrt-1. I don't know how to solve it though sorry
