[tex]A \ linear \ function \ is \ of \ the \ form \ y = ax + b \\ \\ Hence \ to\ draw \ the \ line \ given \ by \ a \ function, \ you \ need \ only \ to:\\\\ a) \ calculate \ two \ points \ that \ satisfy \ the \ equation\\\\b) \ \ join \ the \ two \ points \ by \ a \ line \ (and \ extend \ it \ as \ far \ as \ you \ wish) \\\\ y=2x+5[/tex]
