Rate of Change / Proportional Relationships

What is the unit rate/constant of proportionality?

• 80 miles in 1 hours

• 20 miles in 1 hours

• 40 miles in 1 hours

• 160 miles in 1 hours

Which statement matches the graph?

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

Which statement best describes the relationship between x and y in the table?

• Proportional
• Not Proportional

Samantha drives at a rate of 30 mph. Tracy drives at a rate of 60 miles every 2 hours. Who drives faster?

• Samantha

• Tracy

• They drive the same speed per hour

What is the unit rate in this proportional relationship?

• 60 miles/1 hour
• 120 miles/ 2 hours
• 1 mile/ 1 hour

How much money does Miguel save per month?

• 15 dollars per month

• 30 dollars per month

• He does not save any money.

Find the constant of proportionality on this table of values.

• k=3

• k=1

• k=0

• k=4

What best describes the data on this graph?

• This graph is linear and not proportional.

• This graph is proportional.

• This graph is non-linear.

Evan bought 5 pounds of bananas for $10. Christy bought 6 pounds of bananas for $9. Who has the better deal?

• Christy

• Evan

What is the unit rate if the rate is 30 laps for 10 minutes.

• 3 laps per minute

• 10 laps per minute

• 15 laps per minute

• 10 laps per two minute