Looking at the given points on the right side from (0,2) to (1,6) for 1 increase in X ( 1-0=1) the Y value increases by 3 ( 6/2 = 3)
This same increase happens for th other two points: 18/6 = 3
54 / 18 = 3
The rate of increase is 3.
Every number gets multiplied by 6...
So the answer is...
ANSWER = 64 = 1296
He starts out with the weight of 160, at the end of those 12 months he weighs 232. if you subtract 160 and 232 the approximate rate of change should be 72
The standard form of a linear equation is Ax + By = C
So the answer is; 1x + 3y = 27
<em>Hope this helped! :)</em>