Hence, the common difference in the y-value when there is a difference of 3 in x-value is -1.
The coordinate plane passes through the point:
(1,4) , (4,3) and (7,2)
Now the common difference of a sequence is calculated as the number which is obtained by subtracting a number from a number following it.
So, the common difference in the x-values is 3.
since 4-1=3
7-4=3
Similarly the common difference in y-values is: -1
since:
3-4= -1
2-3= -1
