A proportional relationship is shown in the table below:
x
xx
0
00
0.3
0.30, point, 3
0.6
0.60, point, 6
0.9
0.90, point, 9
1.2
1.21, point, 2
y
yy
0
00
1
11
2
22
3
33
4
44
What is the slope of the line that represents this relationship?