Which table shows a proportional relationship between x and y?

x 1 2 3 6
y 1.5 3 6 9

x 3 5 7 8
y 1.5 2.5 3 4.5

x 2 4 5 6
y 6 12 18 21

x 1 3 4 5
y 50 150 200 250

Four equations are shown below.equation 1: y=2*equation 2: y=2x-5equation 3: y=x2 + 6equation 4: tdentify one linear equation and one nonlinear equation from the list.why each equation you identified is linear or nonlinear.nd one nonlinear equation from the list. state a reasonlinear equation