Answer:
Explanation:
First you would plot the points- (0,2), (1,4), (2,6), (3,8)
Then if the points make a straight line when you connect them then it makes it a linear equation
To know if it is proportional or not you take the y points and put them over their x points, and if all of them end up with the same number than it is proportional
2/0=0, 4/1=4, 6/2=3, 8/3=8/3, therefore it is not proportional