Proportions 1.4-1.6 Assessment

Does the graph show a proportional relationship?

• Yes
• No

• Proportional

• Non-proportional

• Proportional

• Non-proportional

What is the unit rate in this proportional relationship?

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

What is the constant of proportionality (in miles per hour) based on the table?

• 45
• 90
• 135
• 2

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

Does the table represent a proportional relationship?

• Yes.
• No.

Write an equation for this relationship.

Remember: y = kx

• y = 4x

• y = (1/8)x

• y = (1/4)x

• y = 8x

Write an equation for this relationship.

Remember: y=kx

• y=1/5x

• y=1/2x

• y=2x

• y=5x

What does k represent in the equation y = kx?

• constant rate of change
• constant of proportionality
• the equation
• x/y