1. Copyright © 2014, 2010, and 2006 Pearson Education, Inc. Chapter 3 Introduction to Graphing

2. 3-2 Copyright © 2014, 2010, and 2006 Pearson Education, Inc. Bar Graphs A bar graph is a convenient way of showing comparisons. In every bar graph certain categories are paired with certain numbers.

3. 3-3 Copyright © 2014, 2010, and 2006 Pearson Education, Inc. Example The bar graph shows the median weekly earnings for full-time wage and salary workers ages 25 and older. Estimate by how much the median weekly earnings of a high school graduate exceeds that of a person who did not earn a high school diploma ?

4. 3-4 Copyright © 2014, 2010, and 2006 Pearson Education, Inc. Coordinate Plane

5. 3-5 Copyright © 2014, 2010, and 2006 Pearson Education, Inc. Example A B C D E F G Find the coordinates of points A, B, C, D, E, F, and G.

6. 3-6 Copyright © 2014, 2010, and 2006 Pearson Education, Inc. Quadrants The horizontal and vertical axes divide the plane into four regions, or quadrants.

7. 3-7 Copyright © 2014, 2010, and 2006 Pearson Education, Inc. Example Draw a coordinate plane and plot the points (  24, 460) and (38, 85) and (10,  170).