Determine whether the data in each table display exponential behavior. Explain why or why not. 1.) x -3, -2, -1, 0
y 9, 12, 15, 18

2.) x 0, 5, 10, 15
y 20, 10, 5, 2.5

3.) x 4, 8, 12, 16
y 20, 40, 80, 160

4.) x 50, 30, 10, -10
y 90, 70, 50, 30