Comparing Multiple Representations of Functions

• A
• B
• C
• D

• A
• B
• C
• D

How much does Company G charge for 30 minutes of air time?

• over $90

• $5

• $10

• $30

On plan X, how many minutes of usage does $10 buy?

• 30

• 5

• 60

• 20

Use the image and determine which company has a greater initial value.

• Company X

• Company G

Use the image and determine which company has a greater rate of change.  (Which line is steepest?)

• Company X

• Company G

Which company has a greater rate?

• Company Z

• Company S

When will both companies charge the same amount?

• For 10 minutes, both charge $20

• For 20 minutes both charge $10

• cannot determine from graph

$25 will buy how many minutes at Company Z?

• 20

• about 12

• cannot determine from graph

Which company has a greater rate of change?

• Company K

• Company Z

• Neither-they both have the same rate of change