Determining Proportionality with Tables - Are the values in the table are proportional - yes or no

Question

X Y

_____ _______

-4 -5

-3 -6

-2 -7

-1 -8

Answer 1

y +5 = -(x+4) =-x-4

y = -x -9 is the equation that fits the values in the table

x and y x/y are not a constant ratio or proportion

y=x/k or y=kx would be a proportional relation but y=-x-9 can't be written in that form

answer: No, not a proportion