STAAR slope and y-intercept

An aquarium is being filled with water. The graph 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 2.5 inches per second.

Tags

CCSS.HSF.IF.B.4

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

• 5

• -5

• -1/2

• -2

Tags

CCSS.8.EE.B.5

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

• 5

• -5

• -1/2

• -2

Tags

CCSS.8.EE.B.5

Which function is best represented by this graph?

• y = 1/4x +8

• y = 1/4x - 2

• y = 4x - 2

• y = 4x + 8

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The ticket sales for a concert started at 4:00 PM. The table shows the linear relationship between the number of tickets remaining and the number of hours since 4:00 PM. Which function can be used to find y, the number of tickets remaining x hours since 4:00 PM?

• y = 3,000x + 12,000

• y = 3,000x + 15,000

• y = -3,000x + 12,000

• y = -3,000x + 15,000

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The graph shows the relationship between the cost of some pecans and the weight of the pecans in pounds. Which function best represents the relationship shown in the graph?

• y = 5x

• y = 1/5x

• y = 2x

• y = 1/2x

Tags

CCSS.8.EE.B.5

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 = 10m + 25

• t = 25m + 10

• t = 35m

• t = 15m

Tags

CCSS.HSF-BF.A.1A

Which function is best represented by this graph?

• y = 1/2x + 6

• y = -2x + 3

• y = 2x + 6

• y = -1/2x + 3

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Mr. Leonard is renting a car for one day. The table below shows the total amount he will be charged for the car based on the number of miles he drives. Which equation be represents c, the number of dollars Mr. Leonard should be charged for driving m, miles?

• c = 0.10m + 30

• c = 30m + 0.10

• c = 0.50m + 30

• c = 30m + 0.50

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

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?

• t = 50m + 30

• t = 30m - 50

• t = 50m - 30

• t = 30m + 50

Tags

CCSS.HSF-BF.A.1A