Question

Fill in the missing values of the arithmetic sequence in the table. Then, use the table to write a function that represents the arithmetic sequence.(2 points)x f(x) 0=? 1=11 2=15 3=?

Answer 1

Common difference d = f(2) − f(1) = 15 − 11 = 4.
So f(0) = 11 − 4 = 7 and f(3) = 15 + 4 = 19.

Table: f(0)=7, f(1)=11, f(2)=15, f(3)=19.

Function: f(x) = 4x + 7.