1. Graphing Data

2. Graphs All graphs must have title and labeled axis Labels let you know what information is shown.

3. Line Graphs Show relationships between variables You should be able to see trend from graph Use data points to draw line of best fit Determine values of x & y Slope shows relationship/trend slope = change in y change in x

4. Line Graphs Direct relationships = positive slope Indirect relationships = negative slope

5. Line Graphs No relationship = horizontal line (zero slope)

6. Line Graphs Always drawn to largest scale To determine scale: Find range of values and divide by # of lines on graph, round to nearest 0.5

7. Line Graphs Example

8. Bar Graphs Compare information collected by counting

9. Circle Graph Show how a quantity is broken into parts How to find percentage? Part/whole x 100