STAAR Quizizz 8.5I

Rhonda's job is to drive a car for a company. Each month she is paid the same salary. She is also paid extra money for the number of miles she drives the car each month.

* In July, Rhonda drove 640 miles and was paid of total of $3,502.00.

* In August, Rhonda drove 820 miles and was paid a total of $3,601.00.

Which function can be used to find y, the total amount she is paid in a month if she drives x miles?

• y = 5.47x

• y = 4.39x

• y = 0.55x + 3,150

• y = 3,150x + 0.55

A company is drilling a water well. The graph models the linear relationship between the depth of the well and the time spent drilling.

Which function best represents the relationship between y and x?

• y = 6x

• y = 30x

• y = 5x + 30

• y = 6x + 30

A water tank currently contains 275 gallons of water. The amount of water in the tank will decrease at a constant rate of 15 gallons per week.

Which function can be used to find t, the total number of gallons of water in the tank after w weeks?

• t = 15w - 275

• t = -15w + 275

• t = 275w - 15

• t = -275w + 15

The graph of a linear function passes through the points (-1, -1/4) and (1, -3/4).

Which equation represents the function?

A coach is ordering shirts for a team.

* The coach pays a one-time fee of $24.

* The coach also pays $8 for each shirt ordered.

Which function can be used to find c, the total amount the coach pays in dollars when k shirts are ordered?

• c = 8k + 32

• c = 8k + 24

• c = 32k + 8

• c = 24k + 8

The graph shows the relationship between the number of gallons of fuel remaining in the tank of a semitruck and the number of miles traveled by the semitruck.

Which function can be used to find y, the number of gallons of fuel remaining in the tank of the semitruck after it has traveled x miles?

• y = 240x - 30

• y = 240x - 10

Which function is best represented by this graph?

• y = 4x - 2

• y = 4x + 8

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

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 = 2x

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