Question

50 points explain the answer look at picture

Answer 1

No

Explanation:

First find the Rate of Change (Slope,
`(y^2-y^1)/(x^2-x^1)`) of each 2 points.

1) - 2)
`(-27-12)/(-2-1) =(-39)/(-3) = 13`

2) - 3)
`(12-57)/(1-4) = (-45)/(-3) = 15`

Because the rate of change is not constant, the relationship is not proportional.