Proportional Relationships & Unit Rate

Which table shows a proportional relationship between the distances on a map and the actual distances?

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Which graph shows a proportional relationship between x and y?

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What makes a graph proportional?

• Straight line
• The line goes through the origin
• Curvy line
• Straight line and the line goes through the origin

Find the unit rate:  $3.60 for 3 pounds of apples. How much does it cost for 1 pound of apples?

• $1.00 per pound
• $3.60 per pound
• $1.20 per pound
• $1.10 per pound

What is the unit rate?

• 80 miles in 1 hours

• 20 miles in 1 hours

• 40 miles in 1 hours

• 160 miles in 1 hours

• x=7

• x=4

• x=2

• x=3

Which of the following is an example of a unit rate?

• 16 miles/6 days

• 15 words/30 seconds

• $3.18/1 slice of pizza

• $15.82/two movie tickets

Sargento cheese slices $2.50 for 10 slices or Velveeta Cheese slices $3.60 for 12 slices Find the unit price for each and choose the better deal.

• Sargento at $0.25 per slice

• Velveeta at $0.30 per slice

• Sargento at $4 per slice

• Velveeta at $3.33 per slice

Oreos $3.45 for 15 oz. or Chips Ahoy $2.40 for 12 oz. Choose the better deal.

• Oreos

• Chips Ahoy

• Neither they are the same

• Cannot be determined

• x = 6

• x = 25

• x = 28

• x = 17