Quiz about 8th Math STAAR Review RC2

Question 1

Question 1.

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 2

Question 2.

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 3

Question 3.

Accepted Answer

The slope of the hypotenuse of triangle DEF is equal to the slope of the hypotenuse of triangle GHI.

Answer

The relationship between the slope of the hypotenuse of triangle DEF and the slope of the hypotenuse of triangle GHI cannot be determined.

Answer

The slope of the hypotenuse of triangle DEF is greater than the slope of the hypotenuse of triangle GHI.

Answer

The slope of the hypotenuse of triangle DEF is less than the slope of the hypotenuse of triangle GHI.

Question 4

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?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 5

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

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 6

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

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 7

Leanor pays a total of $16.50 for every 6 shirts she has dry-cleaned. Which graph models a relationship with the same unit rate?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 8

Question 8.

Accepted Answer

The height of the water increases 2.5 inches per second.

Answer

The height of the water increases 20 inches per second.

Answer

The height of the water increases 1 inch per second.

Answer

The height of the water increases 5 inches per second.

Question 9

A tree in Dante's neighborhood grew 18 inches in the first two years after it was planted. If the tree continues to grow at this same rate, which graph best represents the growth rate of the tree in inches per year?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 10

On a field trip, there are 3 adults for every 45 students. Which graph models a relationship with the same unit rate?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 11

Judy can decorate 3 cakes in 5 hours. Which graph has a slope that best represents the number of cakes per hour Judy can decorate?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 12

Question 12.

Accepted Answer

The additional fee per yoga class is $3.75.

Answer

The additional fee per yoga class is $8.25.

Answer

The membership fee is $35.00.

Answer

The membership fee is $42.50.

Question 13

Question 13.

Accepted Answer

-5

Answer

70

Answer

65

Answer

5

Question 14

Question 14.

Accepted Answer

Slope = -1/25, y-intercept = 15

Answer

Slope = 1/25, y-intercept = 375

Answer

Slope = 25, y-intercept = 375

Answer

Slope = -25, y-intercept = 15

Question 15

Question 15.

Accepted Answer

$7.50 per box

Answer

$10.00 per box

Answer

$4.00 per 30 boxes

Answer

$3.00 per 4 boxes

Question 16

Question 16.

Accepted Answer

Slope = -1/4, y-intercept = -1.5

Answer

Slope = 4, y-intercept = -6

Answer

Slope = -4, y-intercept = -1.5

Answer

Slope = 1/4, y-intercept = -6

Question 17

Question 17.

Accepted Answer

-6

Answer

-2

Answer

-1/3

Answer

-3

Question 18

Question 18.

Accepted Answer

Carolyn was given 200 stamps, and she will buy 50 stamps every month.

Answer

Carolyn was given 180 stamps, and she will buy 70 stamps every month.

Answer

Carolyn was given 180 stamps, and she will buy 50 stamps every month.

Answer

Carolyn was given 200 stamps, and she will buy 70 stamps every month.

Question 19

Question 19.

Accepted Answer

-5

Answer

-2

Answer

-2.5

Answer

-2/5

Question 20

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?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 21

The approximate volume in milliliters, m, for a volume of f fluid ounces is equal to 29.57 times the value of f. Which table represents this relationship?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 22

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 has passed, x?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 23

Which table contains only corresponding x-values and y-values where the value of y is 3 more than the quotient of x and 2?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 24

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 wash 10 loads of dishes?

Accepted Answer

80

Answer

8

Answer

0.8

Answer

1/8

Question 25

The number of gift baskets Nikki can make varies directly with the amount of time she spends making the baskets. She can make 4 baskets in 1/2 hour. How many baskets can Nikki make in 5 hours?

Accepted Answer

40

Answer

20

Answer

8

Answer

10

Question 26

The value of y varies directly with x. When y = 75, x = 1/2. What is the value of y when x is 2.25?

Accepted Answer

337.5

Answer

84.375

Answer

16.67

Answer

168.75

Question 27

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

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 28

Which graph shows a proportional relationship between x and y?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 29

A relation contains the points (1, 2), (2, -1), (3, 0), (4, 1), and (5, -1). Which statement accurately describes this relation?

Accepted Answer

The relation represents y as a function of x, because one value of x is associated with a single values of y.

Answer

The relation does not represent y as a function of x, because each value of x is associated with a single value of y.

Answer

The relation represents y as a function of x, because one value of y is associated with two values of x.

Answer

The relation does not represent y as a function of x, because each value of y is associated with two values of x.

Question 30

Which representation shows y as a function of x?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 31

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

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 32

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

Accepted Answer

{(3, 2), (4, 3), (5, 2), (2, 6)}

Answer

{(2, 5), (3, 1), (2, 1), (4, 7)}

Answer

{(1, 3), (3, 5), (2, 5), (1, 6)}

Answer

{(4, 7), (4, 6), (4, 4), (4, 1)}

Question 33

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

Accepted Answer

{(2, -1), (4, -2), (6, -3), (8, -4)}

Answer

{(0, 0), (1, 1), (1, 0), (2, 1)}

Answer

{(3, 3), (3, 4), (4, 3), (4, 4)}

Answer

{(1, -5), (1, 5), (2, -10), (2, -15)}

Question 34

Question 34.

Accepted Answer

The mapping represents y as a function of x, because each x-value corresponds to exactly one y-value.

Answer

The mapping represents y as a function of x, because each y-value corresponds to exactly one x-value.

Answer

The mapping does not represents y as a function of x, because two of the x-value correspond to the same y-value.

Answer

The mapping does not represents y as a function of x, because there are more x-values than different corresponding y-values.

Question 35

Which graph represents y as a function of x?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 36

Which representation does not show y as a function of x?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 37

Which situation could NOT represent a proportional relationship?

Accepted Answer

The weight in x weeks of a puppy that gains 2 pounds per week if its starting weight is 8 pounds.

Answer

The number of gallons of water in x barrels with 42 gallons of water in each barrel.

Answer

The amount an employee who makes $8.50 per hour earns in h hours.

Answer

The cost of purchasing p pounds of bananas for $0.55 per pound.

Question 38

Which situation represents a proportional relationship?

Accepted Answer

The cost of purchasing apples for $1.75 per pound plus a shipping fee of $0.16 per pound.

Answer

The cost of purchasing a basket of oranges for $1.30 per pound plus $5.00 for the basket.

Answer

The cost of purchasing peaches for $7.00 per box of peaches with a delivery charge of $3.00.

Answer

The cost of purchasing grapefruit for $1.80 per pound with a coupon for $1.00 off the total cost.

Question 39

Question 39.

Accepted Answer

y = 0.25x - 2

Answer

y = 0.25x + 8

Answer

y = 4x - 2

Answer

y = 4x + 8

Question 40

Question 40.

Accepted Answer

y = -3,000x + 15,000

Answer

y = 3,000x + 12,000

Answer

y = 3,000x + 15,000

Answer

y = -3,000x + 12,000

Question 41

Question 41.

Accepted Answer

y = 5x

Answer

y = 1/5x

Answer

y = 2x

Answer

y = 1/2x

Question 42

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?

Accepted Answer

t = 10n + 25

Answer

t = 25n + 10

Answer

t = 35n

Answer

t = 15n

Question 43

Question 43.

Accepted Answer

y = -0.5x + 3

Answer

y = 0.5x + 6

Answer

y = -2x + 3

Answer

y = 2x + 6

Question 44

Question 44.

Accepted Answer

c = 0.10m + 30

Answer

c = 30m + 0.10

Answer

c = 0.50m + 30

Answer

c = 30m + 0.50

Question 45

Frankie bought a new computer. He made an initial payment of $50 to the store, and he will pay $30 each month until the computer is paid off. Which equation represents the relationship between m, the number of monthly payments Frankie has made, and t, the total amount that Frankie has paid the store?

Accepted Answer

t = 30m + 50

Answer

t = 50m + 30

Answer

t = 30m - 50

Answer

t = 50m - 30

Question 46

Question 46.

Accepted Answer

y = 3x - 6

Answer

y = 3x + 2

Answer

y = -3x - 6

Answer

y = -3x + 2

Question 47

Question 47.

Accepted Answer

(-2, 1)

Answer

(-4, 0)

Answer

(0, -4)

Answer

(1, -2)

Question 48

Question 48.

Accepted Answer

The charge for a trip with a distance of 5 miles is $20 for both Taxi 1 and Taxi 2.

Answer

The charge for a trip with a distance of 5 miles is $5 greater for Taxi 1 than for Taxi 2.

Answer

The charge for a trip with a distance of 5 miles is $5 less for Taxi 1 than for Taxi 2.

Answer

The charge for a trip with a distance of 5 miles cannot be determined for either Taxi 1 or Taxi 2.

Question 49

Question 49.

Accepted Answer

Day 18

Answer

Day 15

Answer

Day 48

Answer

Day 33

8th Math STAAR Review RC2

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