Is this proportional or non proportional?

Answer:
There not porportional
Step-by-step explanation:
For the first pair of numbers: x1/y1 = 6/2 = 3
For the second pair of numbers: x2/y2 = 11/12 ≈ 0.917
For the third pair of numbers: x3/y3 = 15/20 = 0.75
Since the ratios are not equal, the sets x = {6,11,15} and y = {2,12,20} are not proportional.