Unit 2: Proportional Relationships Quiz

Which statement below accurately represents the graph?

• $100 is earned for each hour worked
• $200 earned for every 2 hours worked
  is the unit rate
• $500 is earned for every 8 hours worked
• $200 is earned after working 3 hours

What is the constant of proportionality?

• $3
• $4
• $2
• $9

Harvey's Supermarket sells 3 pounds of ground beef for $6. If Mariah buys 10 pounds of ground beef, how much will she pay?

• $30

• $20

• $60

• $10

What makes a graph proportional?

• Straight Line
• The line goes through (0,0)
• Curvy line
• Straight line and passes through (0,0)

Are the ratios proportional?

• a) Yes, they have the same cross products
• b) No, they do not have the same cross products
• c) Yes, they simplify to the same ratio
• Both a & c

Write an equation for this relationship.

• y=1/5x
• y=1/2x
• y=2x
• y=5x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which statement best describes the relationship between x and y in the table?

• Proportional
• Not Proportional

Which equation matches the given graph?

• y=0.45x
• y = ²/₅x
• y = 4x
• k = ¼

Which statement about this graph is most true?

• It is proportional
• The cleaner uses 1 cup of vinegar to every 2 cups of cleaner
• The cleaner uses 4 cups of cleaner to 2 cups of vinegar
• All of the above

What is the constant of proportionality?

• 15
• 5
• 75
• 25