Investigation Variables and Patterns

What are the variables on the graph? (there are two)

• People in a store

• Time

• Number of people

• The points

What are the variables in the table

• (2, 20)

• Teachers

• Students

• (4,40)

• 10 students per teacher

What are the two variables on the graph?

• Population

• Years

• Bear Population in Emerald Forest

• The points on the graph

What are the variables in the table?

• 6 people per van

• Vans

• People

• 30 people for every 5 vans

The table shows the number of swimming teachers for different number of students.

Which describes the pattern in the table?

• multiply by 2
• multiply by 10
• add 10
• subtract 9

A soccer team and coaches are traveling in vans to a tournament. The table shows the number of people traveling in different numbers of vans.
Which describes the pattern in the table?

• Add 6
• Multiply by 4
• Multiply by 6
• Subtract 6

This graph shows how the temperature changed during an all-day hike by students in the Terrapin Middle School science club.  When was the temperature rising most rapidly?

• Between 3.5 and 4.0 hours
• Between 0 and 1.0 hours
• Between 1.0 and 1.5 hours
• Between 2.0 and 1.5 hours

This graph shows how the temperature changed during an all-day hike by students in the Terrapin Middle School science club.  When did the maximum temperature occur?

• At 2, 2.5 and 3.5 hours
• At 0 hours
• At 5 and 6 hours
• At 4 hours

This graph shows how the temperature changed during an all-day hike by students in the Terrapin Middle School science club.  When was the temperature falling most rapidly?

• Between 3.5 and 4.0 hours
• Between 0 and 1.0 hours
• Between 5.0 and 5.5 hours
• Between 2.0 and 1.5 hours

A group of campers rented 4 rafts to ride down the Brazos River. The table shows the number of people that different numbers of rafts can hold.
How many people can 4 rafts hold?

• 40
• 42
• 32
• 36