Unit 3 Test Review

What function describes the sequence 20, 22, 24.2, 26.62 ...

Amy is walking in a Walk-a-Thon, where sponsors pledge to pay a certain amount of money per mile. Amy's mom pledges to pay $8.50 per mile. The function A(x) = 8.50 represents how much money Amy’s mom will pay if Amy walks x miles.

Which answer best describes the domain and range of A(x)? Amy’s final total walked will be rounded to the nearest mile. Assume Amy walks at least one mile.

• Domain: (-∞,∞)

  Range: (-∞,∞)

• Domain: x ≥ 0

  Range: y ≥ 8.5

• Domain: x ≥ 1

  Range: y ≥ 8.5

• Domain: Positive integers

  Range: y ≥ 8.5

• Domain: Positive integers

  Range: Positive multiples of 8.5

The amount of money charged after parking at a parking deck for x hours can be shown in the table. If the information in the table was put into a linear equation in the form y = mx + b, what is the value of parameter m?

• 2.25

• 7.25

• 4.50

• 5.00

• -2

• 3.5

• -5

• -2.08

• The number of years

• The number of compounding periods in a year

• The growth rate

• The decay rate

In March Madness, 64 college basketball teams compete in a tournament. In each round, half of the teams are eliminated, so that in round one there are 64 teams, in round two there are 32 teams, and so on. How could this be expressed as a geometric sequence?

In March Madness, 64 college basketball teams compete in a tournament. In each round, half of the teams are eliminated, so that in round one there are 64 teams, in round two there are 32 teams, and so on. How many rounds will be played before there is a single winner?

• 4

• 5

• 6

• 7

• f(x)

• g(x)

• They increase at the same rate over that interval

In 2002, Miguel invested $9,200 into a bond that earns 3.3% interest compounded annually. How much will the investment be worth in 2021?

• $18,192.59

• $2,074,765.44

• $16,504.17

• $17,048.80

• $17,511.42

An exercise company charges f(p) = 5 + 2.5p for a dumbbell that weighs p pounds. Which statement is correct?

• For each additional pound, the cost increases by $2.50

• For each additional pound, the cost increases by $5

• For each additional pound, the cost increases by $7.50

• A dumbbell that weighs 1 pound will cost $5

• A dumbbell that weighs 1 pound will cost $2.50