1. SLOPE

2. What is SLOPE and why is it important?

5. Slope is a ratio that compares….

6. The chance in a vertical distance

7. To the change in a horizontal distance

8. Slope is referred to as an equation

9. Slope
M =

10. EXAMPLE

11. If we have a line that has a rise of 12” and a run of 8”, what is the slope?

12. Using the formula M =

13. M =

14. REDUCE TO LOWEST TERMS

15. M = 12 ÷ ÷ 4

16. M =

17. The slope is therefore 3 2

18. In other words

19. For every 3” of rise

20. 3”

21. There is a horizontal run of 2”

22. 3” 2”

23. This becomes relevant in the calculation of Roof Pitch

25. Example

26. If a roof rises 8’ over a distance of 18’, what is the slope or pitch?

27. First, use the formula

28. M = 8 18

29. REDUCE TO SIMPLEST TERMS

30. M = 8 ÷ 2
18 ÷ 2

31. M = 4 9

32. So for every 4’ of rise

33. 4’

34. There is a horizontal run of 9’

35. 4’ 9’

36. To convert to a common PITCH…

37. We need to convert the denominator to 12

38. As this is a ratio we need to cross multiply and divide by the lone soldier

39. 4 = x
9 12

40. Therefore

41. A 4 pitch is the same as a 5

42. 4’
5.3 9’ 12

43. Look Familiar?

45. Questions?