3/1 8th Math STAAR Benchmark Review

3/1 8th Math STAAR Benchmark Review

What types of questions could be asked?

STAAR Reference Chart

How could it be helpful?

What types of questions would these formulas be helpful?

Multiple Choice

Joseph ran a 6-mile race in 48 minutes. Which graph has a slope that best represents Joseph's average rate of speed during the race?

Multiple Choice

A water hose discharges water at a rate of 45 gallons per minute. Which graph has a slope that best represents this rate?

Fill in the Blank

Triangle PSV is shown on the coordinate grid. The coordinates of each vertex of the triangles are integers. What is the slope of segment PV?

Fill in the Blank

A company sells bottles of vitamin capsules. The graph and table show the linear relationship between the cost per capsule in cents and the number of bottles orders. What is the slope of the line that models this situation?

Multiple Choice

What are the slope and y-intercept of the graph of the linear function shown on the grid?

• slope = 4;

  y-intercept = -6

• slope = -4;

  y-intercept = -1.5

• slope = -1/4;

  y-intercept = -1.5

• slope = 1/4;

  y-intercept = -6

Multiple Choice

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?

Multiple Choice

Rudolfo has 15 toys in his toy box, and he adds 2 new toys every month. Based on this information, which representation best shows this relationship between the number of toys Rudolfo has in his toy box, y, and the number of months that have passed, x?

Multiple Choice

Which equation is proportional?

• y=5x+1

• y=4x-3

• y=7x

• y=2x+7

Fill in the Blank

The amount of water an electric dishwasher uses to wash dishes varieis directly with the number of loads of dishes. The dishwasher uses 32 gallons of water to wash 4 loads of dishes.

How many gallons of water will the dishwasher use to wash 10 loads of dishes.

Multiple Choice

What is the slope of the table?

• -2/5

• -5/2

• 5/2

• 2/5

Multiple Choice

Which statement matches the graph?

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

Multiple Choice

Find the slope of the line that passes through
(10, 1) and (5, 2)

• 1/5
• -1/5
• 5
• -5

Multiple Choice

Melissa is saving $25 that she earned for washing her mom's car. She earns $10 every week for doing chores, which she also saves. Which function can be used to find t, the amount of money Melissa will have saved at the end of n weeks of doing chores?

• t = 10n + 25

• t = 25n + 10

• t = 35n

• t = 15n

Multiple Choice

• A
• B
• C
• D

Multiple Choice

Frank and Erica are selling ribbons to raise money for the football team. The graph shows the linear relationship between the number of ribbons each of them has left to sell and the number of days that they have been selling ribbons. On which day does it appear that Frank and Erica will have the same number of ribbons left to sell?

• Day 15

• Day 18

• Day 33

• Day 48

Multiple Choice

In a museum there is a sculpture in the shape of a cylinder. The cylinder has a diameter of 12 feet and a height of h feet. Which equation can be used to find V, the volume of the cylinder in cubic feet?

• A

• B

• C

• D

Multiple Choice

A cylinder and its dimensions are shown in the diagram. Which equation can be used to find V, the volume of the cylinder in cubic inches?

• A

• B

• C

• D

Multiple Choice

Snacks at a county fair are sold in containers shaped like a cone or a cylinder. The dimensions of each container are shown in the drawing. Which statement about the volumes of the cone and the cylinder is true?

• The volume of the cylinder is about 377 cubic inches greater than the volume of the cone.

• The volume of the cylinder is about 377 cubic inches less than the volume of the cone.

• The volume of the cylinder is about 25 cubic inches greater than the volume of the cone.

• The volume of the cylinder is about 25 cubic inches less than the volume of the cone.

Multiple Choice

A ball shaped like a sphere has a radius of 2.7 cm. Which measurement is closest to the volume of the ball in cubic centimeters.

• 46.38 cm³

• 33.93 cm³

• 122.15 cm³

• 82.45 cm³

Fill in the Blank

A container is shaped like a triangular prism. Each base of the container is an equilateral with the dimensions shown. The container has a height of 15 cm. What is the lateral surface area of the container in square centimeters?

Multiple Choice

An architect uses a cylindrical container to protect her blueprints. The dimensions of the cylinder are shown in the diagram. Which measurement is closest to the total surface area of the container in square inches?

• 424.12 in²

• 791.68 in²

• 339.29 in²

• 282.74 in²

Multiple Choice

An artist joined three square regions at their vertices to create the figure shown in the diagram. The artist will use small congruent square tiles to cover each region without any gaps or overlaps. Based on the information, which statement is true?

• The number of tiles needed to cover Region X is the same as the number of tiles needed to cover both Region Y and Region Z.

• The number of tiles needed to cover Region Y is the same as the number of tiles needed to cover both Region X and Region Z.

• The number of tiles needed to cover Region Z is the same as the number of tiles needed to cover both Region X and Region Y.

Multiple Choice

The dimensions of a rectangular piece of paper are 8.5 inches by 11 inches. Veronica folded the piece of paper along its diagonal. Which measurement is closest to the length of the diagonal in inches?

• 6.24 in

• 19.5 in

• 6.98 in

• 13.9 in

Multiple Choice

A right triangle and two of its side lengths are shown in the diagram. Which measurement is closest to the value of x in centimeters?

• 37.7 cm

• 40.8 cm

• 27 cm

• 51 cm

Multiple Choice

Which scatterplot does NOT suggest a linear relationship between x and y?

Multiple Choice

Phil collected data from several of his friends about the number of hours they spent sleeping and the number of hours they spent playing video games on Saturday. He recorded the data in the scatterplot. Based on the scatterplot, what is the best prediction of the number of hours one of Phil's friends spends sleeping when the friend spends 1 hour playing video games?

• 7 hours

• 8 hours

• 9 hours

• 10 hours

Multiple Choice

Clarissa needs a $2,500 loan in order to buy a car. Which loan option would allow her to pay the least amount of interest?

• An 1.5 year loan with a 4.75% annual simple interest rate

• A 2.5 year loan with a 4% annual simple interest rate

• A 2 year loan with a 4.25% annual simple interest rate

• A 3 year loan with a 4.5% annual simple interest rate

Fill in the Blank

Mrs. Sanford deposited $1,500 in an account. She made no additional deposits or withdrawals. Mrs. Sanford earned 4.25% annual simple interest on the money in the account. What was the balance in Mrs. Sanford's account at the end of 4 years?

Multiple Choice

An employee put $5,000 in a retirement account that offers 9% interest compounded annually. The employee makes no additional deposits or withdrawals. Which amount is closest to the interest the employee will have earned at the end of 5 years?

• $229.09

• $450

• $2,500

• $2,693.12