Question 1056094
6x+3y=18 
3y = 18-6x
y = 6-2x
so when x = 0
y = 6-0 = 6
when x = 1
y = 6-1 = 5
when x = 2
y = 6-2 = 4
There is only one y point for every x point, so this is a function
*[illustration function.JPG]