The answers I can pick are A:1/5
B:5
C:10
D:2
I really need the right answer cause this is for a test and if you answer can you pls give me an explanation thank you :)

1/5
If you take all the points on the graph
(2,10) , (4,20) , (6,30) , (8,40)

turn them into proportions
2/10 , 4/20 , 6/30 , 8/40

And then simplify them by dividing by a common factor, you would get

1/5 , 1/5 , 1/5 ,1/5

This is the common proportionality

The answer is 1/5lmk if it’s correct

Hi! mark me brainliest if i : )y = 0.213x – 352.0    represents this linear model shown in the data table.plug in the values of x into the equation for a double check.let's try 1980.y = 0.213(1980) – 352.0y = 69.74which is closest to the 70.1 whereas other options do not satisfy the condition.