Proportionality

What is a UNIT RATE?

• A comparison of two quantities where the denominator is always 1 unit
• A rate that compares 2 different quantities
• The relationship between 1 unit of quantity with another

• a comparison of two quantities where the first quantity is always 1

Determine if the linear relationship is proportional or nonproportional. 

• Proportional
• Nonproportional
• Neither

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound
• $5 per pound
• $35 per pound
• 0.125 pounds per dollar

$279 for 9 concert tickets. Find the cost per ticket.

• $31

• $39

• $2,511

• $34

What ordered pair does a proportional relationship always go through when graphed?

• (0, 0)

• (1, 0)

• (0, 1)

• (1, 1)

The table shows the distance of a train from a station and the time it will take to arrive. The relationship is linear. Is it proportional or nonproportional?

• Proportional
• Nonproportional
• Neither
• Both

Determine the missing value in the table. 

• 15
• 3
• 1/3
• 9

Which table shows a proportional relationship?

• A only

• B and C

• C only

• B, C, and D

Solve for x 

• x = 16
• x = 28
• x = 1/26
• x = 26

Hamburger sells for 3 pounds for $6. If Alicia buys 10 pounds of hamburger, how much will she pay?

• $30
• $20
• $60
• $10