Chapter 22: Examine the following tables and tell whether the data represent a linear, a quadratic, an

exponential, or an absolute value relationship. Write an expression for the nth term.

7.

Input Output

1

3

3

4

6

n

11

18

38

8.

Input Output

2

-3

4

-5

n

119

1

-27

1

81

1

-243

9.

Input

8

-5

14

-7

n

Output

8

5

14

7