Name:    Lesson 8.5: Recognizing Misleading Graphs

1.

Pappy’s Pizza presented this illustration to demonstrate how many pizzas are sold in one weekend.

Friday                                            Saturday                                    Sunday
62                                                       57                                             51

2.

This illustration demonstrates the price of a sports car in 2000 and in 2008.

2000                                                        2008
\$25 000                                                   \$60 000

3.

These line graphs show monthly heating costs from January to June.
Graph 1

Graph 2

4.

Refer to the graphs from question 3. How is Graph 2 misleading?

5.

Which graph from question 3 would you use to demonstrate a huge savings in heating costs?
 a. Graph 1 b. Graph 2

6.

These bar graphs show the heights of students in the Grade 8 class.
Graph 1

Graph 2

How are the graphs different?

7.

Colin used this illustration to demonstrate how much he spent last year on flowers for his wife’s birthday, his anniversary, and for Mother’s day.

Birthday                   Anniversary                                  Mother’s Day
\$15.00                    \$25.00                                                       \$60.00