1. 7 - 1 Module 6: Line Graphs This module provides information on arithmetic scale and semi-logarithmic or ratio scale line graphs. Reviewed 15 April 05 /MODULE 6

2. 7 - 2 Arithmetic Scale Line Graph Source: Am J Public Health, Dec.2003; 93:2101

3. 7 - 3 Use: Show amount of change or difference in the dependent variable (vertical axis) for the different points of the independent variable (horizontal axis). For: Interval or ratio data. Arithmetic Scale Line Graph

4. 7 - 4 Arithmetic Scale Line Graph

5. 7 - 5 Source: Am J Public Health, Dec. 2003;93:2089

6. 7 - 6 Source: Am J Public Health, Aug. 2000;90:1399

7. 7 - 7 Source: Am J Public Health, July 2001;91:1061

8. 7 - 8 Source: Am J Public Health, July 2000;90:1067

9. 7 - 9 Use: Show rate of change in the dependent variable (vertical axis) for the different points of the independent variable (horizontal axis). For: Interval or ratio data. Semi-logarithmic or Ratio Scale Line Graph

10. 7 - 10 Semi-logarithmic or Ratio Scale Line Graph

11. 7 - 11 Arithmetic and Semi-log Scale Line Graphs YearABC 1106012 2207024 3308048 4409096

12. 7 - 12 Semi-logarithmic Scale

13. 7 - 13 Ratio Scale

14. 7 - 14 Source: Am J Public Health, Mar. 2004;94:456

15. 7 - 15 Source: Am J Public Health, Mar. 1996;86:560

16. 7 - 16 A Line Graph and a Bar Chart with a Scale break