Plot each column of the table as a point (x, y), then look at the shape they make.
| hours worked | 1 | 2 | 3 | 4 |
| dollars earned | 8 | 16 | 24 | 32 |
| hours worked | 1 | 2 | 3 | 4 |
| dollars earned | 8 | 16 | 24 | 32 |
| tickets | 1 | 2 | 3 |
| dollars | 9 | 18 | 27 |
| minutes | 1 | 2 | 3 | 4 |
| pages printed | 5 | 10 | 15 | 20 |
| bags of flour | 1 | 2 | 3 | 4 |
| loaves baked | 2 | 4 | 6 | 8 |
| liters of paint | 1 | 2 | 3 |
| walls covered | 2 | 4 | 6 |