Proportional Relationships Review

Dropdown

Describe the translation that took place of triangle LEB.

x-value change

Select answer

y-value change ​

Select answer

​ ​

Multiple Choice

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)

• 3 units right and 4 units up

• 3 units left and 4 units up

• 3 units left and 4 units down

• 3 units right and 4 units down

STOP ON THIS SLIDE AFTER BELL-RINGER IS COMPLETE!

Multiple Choice

What is the letter that represents the constant of proportionality?

• x

• y

• c

• k

Multiple Choice

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

• multiplying y-value from x-value

• dividing x-value from y-value

• dividing y-value from x-value

• multiplying x-value from y-value

Multiple Choice

The constant of proportionality can also be called...

• variable

• coordinate plane

• ratio table

• direct variation

Multiple Choice

How can you tell if a graph is proportional?

• If the graphs a straight line.

• If the graph goes through the origin.

• If it has a constant rate.

• If the graph is a straight line, going upward through the origin.

Multiple Choice

Which graph shows a proportional relationship?

Multiple Choice

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?

Multiple Choice

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?

• The height of the water increases 20 inches per second.

• The height of the water increases 1 inch per second.

• The height of the water increases 5 inches per second.

• The height of the water increases 2 ¹/₂ inches per second.

Multiple Choice

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?

• $7.50 per box

• $10.00 per box

• $4.00 per 30 boxes

• $3.00 per 4 boxes

Multiple Choice

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?

• c= 5w

• c= 1/5w

• w= 5c

• c= 10w

Multiple Choice

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?

• $79.00

• $64.00

• $68.00

• $71.00

Multiple Choice

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

• 280 calories per 4 servings

• 910 calories per 13 servings

• 525 calories per 8 servings

• 630 calories per 9 servings

Fill in the Blanks

Exit Ticket
10/10TEK 8.5E

A hot-air balloon is released at ground level, and it rises into the air at a constant rate. After 5
seconds the height of the balloon is 20 feet. The balloon continues to rise at the same rate.

Which table shows the relationship between the time in seconds, x, and the height of the balloon
in feet, y?

A.

B.

C.

D.

Poll

Exit Ticket Answer Choices

• A

• B

• C

• D