Unit 4A Practice Test

Which statement best represents the meaning of the equation h(20) = 3 in the context of a tomato plant's height after d days?

• The tomato plant has a height of 20 inches after 3 days.

• The tomato plant has a height of 3 inches after 20 days.

• The height of the tomato plant has been 3 inches for 20 days.

• The tomato plant has a height of 3 feet after 20 days.

Tags

CCSS.HSF.IF.A.2

If function R gives the amount of rain measured by a rain gauge t hours after it started raining, what does R(3) represent?

• The amount of rain after 3 millimeters.

• The amount of rain measured 3 hours after it started raining.

• The amount of rain measured 3 days after it started raining.

• The amount of rain measured 3 minutes after it started raining.

Tags

CCSS.HSF.IF.A.2

Given R(0.5) = 14, what does this equation represent in the context of rain measured in millimeters?

• 0.5 millimeters of rain fell in 14 hours.

• 14 millimeters of rain fell in 0.5 hours.

• 14 hours after it started raining, 0.5 millimeters of rain had fallen.

• 0.5 hours after it started raining, 14 millimeters of rain had fallen.

Tags

CCSS.HSF.LE.B.5

How would you use function notation to represent the statement: "Six hours after it started raining, the amount of rain was 37 millimeters"?

• R(6) = 37

• R(37) = 6

• R(6, 37)

• R(37) = 6 millimeters

Tags

CCSS.HSF.IF.A.2

Which of the following statements correctly uses function notation to express: "The amount of rain 90 minutes after it started raining was the same as the amount 120 minutes after it started raining"?

• R(90) = R(120)

• R(1.5) = R(2)

• R(120) = 90

• Both A and B

Tags

CCSS.HSF.IF.A.2

Which of the following statements in function notation correctly represents the situation shown in the graph for the distance of a boat from the dock?

• d(30) = d(70)

• d(0) = 170

• d(10) = 80

• d(170) = 80

Tags

CCSS.HSF.IF.A.2

According to the function k(w) = 60 - 3.5w, how many pounds of dog food are left after 8 weeks?

• 32 pounds

• 28 pounds

• 60 pounds

• 21 pounds

Tags

CCSS.HSF.IF.A.2

What does the solution to the equation K(w) = 21.5 represent in the context of the dog food problem?

• The number of weeks until the dog food runs out

• The amount of dog food left after a certain number of weeks

• The initial amount of dog food

• The rate at which the dog eats food

Tags

CCSS.7.EE.B.4A

If the dog owner starts with a 60-pound bag of dog food and the dog eats 3.5 pounds per week, how much food is left after 14 weeks?

• 11 pounds

• 21 pounds

• 14 pounds

• 10 pounds

Tags

CCSS.7.EE.B.3

Which of the following statements is NOT true based on the graph of the boat’s distance from the dock?

• d(0) = 0

• d(90) < d(160)

• d(0) = 170

• d(10) = 20

Tags

CCSS.HSF.IF.B.4