Comparing Proportional and Nonproportional Relationships

What is the main focus of this video?

• Exploring geometric shapes

• Learning about quadratic functions

• Comparing proportional and non-proportional relationships

• Understanding linear equations

In smoothie shop A, what is the cost per ounce of a smoothie?

• 1.25 dollars

• 1 dollar

• 50 cents

• 75 cents

Which equation represents the relationship between size and price in smoothie shop A?

• p = 0.5s

• p = 0.75s

• p = s + 0.75

• p = 1.25s

Why is the relationship in smoothie shop B not proportional?

• The sizes are not listed

• The prices are not in dollars

• The cost per ounce is different for each size

• The cost per ounce is the same for each size

What is a key characteristic of quantities in a proportional relationship?

• They have different quotients

• They have the same quotient

• They are always integers

• They are always positive

In a table of values for two related quantities, what indicates a proportional relationship?

• Random values

• Same quotient for each pair

• Negative values

• Different quotients for each pair

What is the constant of proportionality often referred to as?

• c

• k

• b

• m

Which equation represents a proportional relationship?

• y = k/x

• y = kx

• y = x + k

• y = k - x

If y is proportional to x, what will y/x always equal?

• x

• k

• 1

• 0

What does it mean if an equation cannot be written in the form y = kx?

• It is a linear equation

• It is a quadratic equation

• It does not represent a proportional relationship

• It represents a proportional relationship