Odino chemicals limited are aware that its power costs are semi variable cost and over the last six months these costs have shown the following relationship with a standard measure of output.

Month

Output (standard units)

Total power costs 000

months output total cost (000)

1 12. 6.2

2. 18. 8.0

3 19. 8.6

4. 20. 10.4

5. 24. 10.2

6. 30. 12.4

RequiredUsing the method of least squares, determine on appropriate linear relationship