PreAlgebra District Assessment #2 Corrections

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other is constant.

Front

What is a non-proportional relationship?

Back

A non-proportional relationship is a relationship where the ratio of one quantity to another is not constant.

Front

Identify the equation of a proportional relationship.

Back

y = kx, where k is a constant.

Front

Identify the equation of a non-proportional relationship.

Back

y = mx + b, where b ≠ 0.

Front

What does the slope of a line represent in a graph?

Back

The slope represents the rate of change of y with respect to x.

Front

How do you determine if a graph represents a proportional relationship?

Back

A graph represents a proportional relationship if it passes through the origin (0,0) and is a straight line.

Front

What is the unit rate?

Back

The unit rate is the ratio of two measurements in which the second quantity is one unit.

Front

How do you find the unit rate from a proportional relationship?

Back

Divide the total amount by the number of units.

Front

What is an example of a proportional situation?

Back

The cost of purchasing p pounds of bananas for $0.55 per pound.

Front

What is an example of a non-proportional situation?

Back

The weight in x weeks of a puppy that gains 2 pounds per week if its starting weight is 8 pounds.