Name: 
 

Lesson 8.5: Recognizing Misleading Graphs



 1. 

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

sa001-1.jpg                   sa001-2.jpg                       sa001-3.jpg
       Friday                                            Saturday                                    Sunday
         62                                                       57                                             51

How is this illustration misleading?
 

 2. 

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

sa002-1.jpg                sa002-2.jpg
          2000                                                        2008
        $25 000                                                   $60 000

How is this illustration misleading?
 

 3. 

These line graphs show monthly heating costs from January to June.
Graph 1
sa003-1.jpg
Graph 2
sa003-2.jpg
How is Graph 1 misleading?
 

 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
sa006-1.jpg
Graph 2
sa006-2.jpg
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.

sa007-1.jpg           sa007-2.jpg        sa007-3.jpg
Birthday                   Anniversary                                  Mother’s Day
$15.00                    $25.00                                                       $60.00

How is this illustration misleading?
 

 8. 

This illustration demonstrates the price of a movie ticket for youths and for adults.

sa008-1.jpg               sa008-2.jpg
Youth Ticket                                               Adult Ticket
      $6.75                                                   $9.25

How is this illustration misleading?
 



 
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