Proportional Relationships

Solve the proportion:

• 4
• 8
• 14
• 10

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

The Williams family bought four concert tickets for $252.  What was the price per ticket?

• $60.00

• $63.00

• $6.30

• $62.00

What does k represent in the equation y = kx?

• constant for preparation

• constant of proportionality

• kangaroos

• krispy kreme

Does this table represent a proportional relationship?

• Yes, it's proportional

• No, it's not proportional

• Sometimes it's proportional

How much would 10 dozen eggs cost?

• 15

• 9

• 3

• 18

What makes a graph proportional?

• Curved line

• Straight line

• Curved line that passes through (0,0)

• Straight line that passes through (0,0)

Does the graph represent a proportional relationship?

• yes

• no

Is this graph proportional

• No

• Yes

• I have no idea

• Maybe

Coffee costs $2 per pound. Which graph models this relationship?

• A

• B

• C

• D