Exercise 9 Page 315

From the table we see that there is a common difference of 1.5, making it an arithmetic sequence. Since we know d= 1.5, we can use a recursive equation for the arithmetic sequence. a_n=a_(n-1)+ d ⇒ a_n=a_(n-1)+ 1.5 The recursive rule is the recursive equation together with the first term. Recursive Rule: a_1=2, a_n=a_(n-1)+1.5