one way is to subsitute values for x and get values for y exg
if x=1 then subsitute
y=3(1)+2
y=3+2
y=5
so if x=1 then y=5
etc so
(x,y)
(-9,-25)
(-8,-22)
(-7,-19)
(-6,-16)
(-5,-13)
(-4,-10)
(-3,-7)
(-2,-4)
(-1,-1)
(0,2)
(1,5)
(2,8)
(3,11)
(4,14)
(5,17)
(6,20)
(7,23)
(8,26)
(9,29)