Question

In which ofthe following tables, x and y vary directly:

(i)

| x | 3 | 5 | 8 | 11 |
| y | 4.5 | 7.5 | 12 | 16.5 |

(ii)

| x | 16 | 30 | 40 | 56 |
| y | 32 | 60 | 80 | 84 |

(iii)

| x | 27 | 45 | 54 | 75 |
| y | 81 | 180 | 216 | 225 |

Answer 1

x and y are not in direct variation.