STAAR Review Part Two

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

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Tags

CCSS.8.F.A.1

CCSS.8.F.A.3

CCSS.8.F.B.5

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?

• V = π(6)²h

• V = π(6h)²

• V = π(12)²h

• V = π(6h)²

Answer explanation

Tags

CCSS.8.G.C.9

The amount of water an electric dishwasher uses to wash dishes varies 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 was 10 loads of dishes?

• 75

• 80

• 85

• 100

Answer explanation

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.B.4

An oli-well contractor drills a shaft 7 meters deeper into the ground every 2 hours. Which graph has a slope that best represents this rate?

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Tags

CCSS.8.EE.B.5

CCSS.8.F.B.4

CCSS.8.SP.A.3

Point Q is shown on the number line. Which value is best represented by point Q?

• √5.4

• √29.5

• √35.5

• √5.9

Answer explanation

Tags

CCSS.8.NS.A.1

CCSS.8.NS.A.2

A gym charges a membership fee plus an additional fee per yoga class. The table shows the linear relationship between the number of yoga classes taken and the total cost including the membership fee. Which statement is true?

• The additional fee per yoga class is $3.75

• The additional fee per yoga class is $8.25

• The membership fee is $35.00

• The membership fee is $42.50

Tags

CCSS.8.EE.B.5

CCSS.8.F.A.2

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

The table shows the number of gallons of gasoline in a car's gas tank after the car has been driven x miles. When these data are graphed on a coordinate grid, the points all lie on the same line. What are the slope and y-intercept of this line?

• Slope = 1/25, y-intercept = 375

• Slope = -1/25, y-intercept = 15

• Slope = 25, y-intercept = 375

• Slope = -25, y-intercept = 15

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

Emily sells greeting cards. The graph models the linear 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

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.3

Which graph shows a proportional relationship between x and y?

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Tags

CCSS.8.EE.B.5

CCSS.8.F.B.4

Which set of ordered pairs represents y as a function of x?

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Tags

CCSS.8.F.A.1