Proportional Relationships Review

Determine the translation change between the x- and y-values of the image and preimage of the given vertices.

A(-4, -3) → A'(-1, 1)

B(-2, -2) → B'(1, 2)

C(-2, -4) → C'(1, 0)

What is the letter that represents the constant of proportionality?

The constant of proportionality OR unit rate can be found by... k=y/x

The constant of proportionality can also be called...

How can you tell if a graph is proportional?

Which graph shows a proportional relationship?

Julieta can decorate 3 cakes in 5 hours. Which graph has constant rate that best represents the number of cakes per hour Julieta can decorate?

An aquarium is being filled with water. The graph displayed shows the height of the water over time as the aquarium is being filled.

Which statement best describes the rate of change for this situation?

Emily sells greeting cards. The graph models the proportional relationship between the number of boxes of cards she sells and her profit.

Which of these best describes the profit Emily makes from selling these cards?

The graph shows the relationship between the cost, c, of some pecans and the weight, w, of the pecans in pounds.

Which equation represents the relationship shown in the graph?

A store manager discounted the prices of several items during a sale. The sale price of an item is directly proportional to the original price as shown in the table displayed.

Based on the data in the table, what would be the sale price of an item that had an original price of $85.00?

A can of juice contains 175 calories per 2.5 servings. Which of the following is not a equivalent number of calories per serving?

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