Exponential Growth and Decay
9 months ago
mrsdever
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15 QuestionsShow answers
  • Question 1
    60 seconds
    Q. The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the decay factor?
    answer choices
    .08
    1.08
    .92
    8
  • Question 2
    60 seconds
    Q. Which of the following functions shows an initial amount of $15 and an increase of 35% each year?
    answer choices
    y = 15(35)x
    y = 15(1.35)x
    y = 15(0.35)x
    y = 35(1.15)x
  • Question 3
    180 seconds
    Q. Classify the model as Exponential GROWTH or DECAY.
    A=1200(.85)6
    answer choices
    Growth
    Decay
  • Question 4
    180 seconds
    Q. Classify the model as Exponential GROWTH or DECAY.
    A=10(1.01)3
    answer choices
    Growth
    Decay
  • Question 5
    30 seconds
    Q. What type of function is y = 7(5/4)x?
    answer choices
    Exponential Growth
    Exponential Decay
    Linear
    None of the above
  • Question 6
    180 seconds
    Q. James' 70 in. giant peach doubles in size every week. Write an expression that would represent how big the peach is after 5 weeks.
    answer choices
    70(2)35
    70(2)5
    2(70)5
    5(70)2
  • Question 7
    180 seconds
    Q. Write an equation that models the following situation:
    Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.
    answer choices
    y=6(0.14)x
    y=6(1+14)x
    y=6(1.14)x
    y=6(0.86)x
  • Question 8
    180 seconds
    Q. Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.
    answer choices
    y=5000(0.7)x
    y=30(5000)x
    y=5000(1.3)x
    y=5000xx
  • Question 9
    300 seconds
    Q. A population of fish starts at 8,000 and decreases by 6% per year. What is the population of fish after 10 years?
    answer choices
    14327
    4309
    839
    7680
  • Question 10
    300 seconds
    Q. Daniel’s Print Shop purchased a new printer for $35,000. Each year it depreciates at a rate of 5%. How much will the printer be worth in 8 years?
    answer choices
    $23,219.72
    $136.72
    $51,710.94
    $16,710.94
  • Question 11
    120 seconds
    Q. The number of mosquitoes at the beginning of the summer was 4,000. The population of mosquitoes is expected to grow at a rate of 25% a month. How many mosquitoes will there be after 4 months?
    answer choices
    9766
    9006
    9765
    5433
  • Question 12
    180 seconds
    Q. Twenty years ago, Mr. Davis purchased his home for $160,000. Since then, the value of the home has increased about 5% per year. How much is the home worth today?
    answer choices
    $176,783.29
    $424,527.63
    $57,357.75
    $532,041,076.80
  • Question 13
    120 seconds
    Q. Suppose you deposit $3000 in a savings account that pays interest at an annual rate of 4%. If no other money is added or withdrawn from the account, how much will be in the account after 10 years?
    answer choices
    $3122.18
    $4994.50
    $4440.73
    $86,776.40
  • Question 14
    30 seconds
    Q.

    If you have $10, and your money doubles every year, how much money will you have in 10 years?

    answer choices

    $50

    $100

    $5120

    $10240

  • Question 15
    300 seconds
    Q. The attendance at the art museum at the New Year’s opening was 250 people. The attendance has been increasing at a rate of 3% each month. How many people will attend by the end of a year?
    answer choices
    356
    265
    5825
    1329
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