Question

Any luck with this question ??

Answer 1

It is linear.

Explanation:

Check slope for each two sets, (y2-y1)/(x2 - x1), if all of them are the same, then it is linear. In this question the slope is -2, taking the first two as an example (4-8)/(4-2) = -2.

Answer 2

Linear, decrease by 2 for every decrease of x.