table difference

[yorkmanz]

create table difference like the following to determine each relationship is linear, quadratic, exponential, or neither. justify the answer

table hosted at ImgBB

Image table hosted in ImgBB

ibb.co

please check if my answers are right

Table A):

since the first and second differences are constant its is A linear relationship

Table B):

since the ratio between y-value is constant therefor its exponential relationship

Table C):
since the second difference are constant and the first difference are not constant therefore its Aquadratic realtionship

Table d):
since the second difference are constant and the first difference are not constant therefore its Aquadratic realtionship

please check the answers. also please check the wording answers if better answer than my answer

thanks much

 

[Steven G]

In d I do not think that the 1st differences are not constant.