CPM Homework Help : CCA2 Problem B-107

Write an explicit equation for the sequence graphed at right.

Hint:

How do the $y$ -values of the points change as you move from left to right?

More Help:

From this, can you determine the $y$ -intercept?

A first quadrant coordinate plane with, x axis, labeled as, N, scaled from by integers 0 to 5, and, y axis, labeled as, t of n, scaled from 0 to 10. The discrete graph has the following 3 points: (2, comma 8), (3, comma 4), (4, comma 2).