Investigation Variables and Patterns

Where is the greatest increase of rental cost shown on the table? 

• From 10-15 bikes
• From 30-35 bikes
• From 5-10 bikes
• From 20-25 bikes

What is the independent variable?

• Tiger cubs
• Age (weeks)
• Expected body weight (kg)
• Pounds of cat food

Describe the change of temperature from 3.5 hours to 5 hours.

• 48 °C decrease, temperature stayed the same, then 20 °C decrease 
• 12 °C decrease, time stopped, then 6 °C decrease 
• 20 °C decrease, time stopped, then 48 °C decrease 
• 12 °C decrease, temperature stayed the same, then 3 °C decrease 

By moving along the x-axis first, describe how you would move from the shopping mall to the police station. 

• Move 7 to the left, move 4 up.
• Move 4 down, move 7 to the right.
• Move 4 up, move 7 to the left.
• Move 7 to the right, move 4 down.

Where is point d located on the graph?

• (-4, 7)
• (-7, 4)
• (4, -7)
• (7, -4)

What is the dependent variable?

• Day
• School food drive
• Number of cans collected
• There is no dependent variable

Describe the relationship between the number of laps raced and the cost.

• As the number of laps increases by 10, the number of laps increases by $12.
• As the number of laps increase by 5, the cost increases by $12.
• As the number of laps increase by 12, the cost increases by $10.
• As the number of laps increase by 10, the cost increases by $20.

What are the variables?

• Number of laps raced and cost
• Number of racers and cost
• Number of go-karts and cost
• Kartland and price packages

Based on the graph, which of the following is the best estimate for the cost of 45 laps?

• $50
• $80
• $90
• $100

Match one of the (time, distance) graphs with the statement:
You walk at a steady pace of 5 feet per second.

• Graph 2
• Graph 3
• Graph 4
• Graph 5