Question

Does the table represent an exponential function

x | 1 | 2 | 3 | 4 |
y |-1| -8 |-27|-64

Answer 1

Yes because:

1 x -1 = -1, 2 x -4 = -8, 3 x -9 = -27, 4 x -12 = -64

In other words, you are not increasing by the same constant number.