STAAR 8th grade review

Which graph shows a non-proportional linear relationship between x and y?

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The coordinate grid shows a pentagon. The pentagon is translated 1 unit to the left and 10 units down to create a new pentagon.

Which rule describes this transformation?

• (x, y) → ( x − 1, y − 10)

• (x, y) → ( x + 1, y − 10)

• (x, y) → ( x − 1, y + 10)

• (x, y) → ( x + 1, y + 10)

Two numbers are shown on the number line.

Which value is NOT located between these two numbers on the number line?

• π

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• π / 9

• π² / 9

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

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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?

• V = π (2.5h)²

• V = π (5h)

• V = π (2.5)²h

• V = π (5)²h

The manager of a car dealership wants to attach a rope with flags to the top of a pole and to a stake in the ground, as shown in the diagram.

Based on the diagram, what is the distance in feet from the top of the pole to the bottom of the stake?

• 22

• 30

• 32.5

• 42.5

The scatterplot shows the number of people in each of 8 different households and the average amount of money each household spent on groceries.

Based on the scatterplot, what is the best prediction of the average amount of money spent on groceries for a household that has 7 people?

• $240

• $190

• $210

• $300

Which graph does NOT represent y as a function of x?

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What value of x makes this equation true?

• 3

• -9

• -1

• 27

A cylinder and its dimensions are shown in the diagram.

Which measurement is closest to the lateral surface area of the cylinder in square centimeters?

• 575.3

• 287.6

• 398.5

• 604.1