## Critique

## Opening

# Critique

Review your work on the Self Check problem and think about these questions.

- What are the two quantities that vary in relation to one another in this situation?
- Can you describe in words the relationship between the price and the amount of paint?
- Is there a constant of proportionality in this situation?
- Can you write a formula using the unit rate that would enable you to find one quantity if you knew the other quantity?