COP Practice

In the equation y = 14x, what is the constant of proportionality?

• y
• x
• 14
• 1/14

Find the unit rate of 624 calories in 3 servings.

• 1,872 calories per serving
• 208 calories per serving
• 624 calories per serving
• 621 calories per serving

A recipe calls for 3/4 cup of brown sugar for every 3 eggs. What is the unit rate of eggs per cup? 

• 1 cup per egg
• 2 cups per egg
• 3 eggs per cup
• 4 eggs per cup

Write the equation for the table given

• y = 1/3x
• y = 3x
• y = 1/2x

What is the constant of proportionality for this table?

• $1/9 per hour
• $9 per hour
• $8 per hour

What makes a graph proportional?

• Linear (straight line)

• The line goes through the origin

• Curvy line

• Linear(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

Is this graph proportional?

• Yes
• No

Is this graph proportional?

• Yes
• No

Is this table proportional?

• Yes
• No