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- 1. Multiple Choice
Does the graph represent an exponential growth or an exponential decay function?Exponential GrowthExponential Decay - 2. Multiple ChoiceWhat does the y-intercept of the graph represent?The amount of grams the material is gaining.The amount of grams the material is losing.The amount of grams remaining after so many years.The initial amount of grams.
- 3. Multiple ChoiceWhich of the following is an increasing exponential function whose y-intercept is 50?y = 50(.05)xy = 50x - 4y = (2)x + 50y = 50(1.4)x
- 4. Multiple ChoiceThe amount of ants in a colony, f, that is decaying can be modeled by f(x) = 800(.87)x, where x is the number of days since the decay started. By what percentage is the colony decaying?87%13%800%8.7%
- 5. Multiple ChoiceThe amount of ants in a colony, f, that is decaying can be modeled by f(x) = 800(.87)x, where x is the number of days since the decay started. Suppose f(20) = 49. Which of the following is true?After 20 days, there are 49 ants in the colony.After 49 days there are 20 ants in the colony.The amount of ants times 20 is 49.After 20 days the amount of ants remaining decreases by 49.
- 6. Multiple ChoiceThe amount of downloads for an album on iTunes, g(d), where d is the number of days since the album was first uploaded can be represented as
g(d) = 51.5d
How many downloads will the album have after 3 days?125111398140 - 7. Multiple ChoiceA collectible car has been going up in price by 10% each year. If the car is already worth $29,000, how much will the car be worth in 5 years?$0.29$2,900,000,000$46,704.79$145,000
- 8. Multiple ChoiceThe expression 12(1.015)t models the population of elephants in a wildlife refuge after t years since 1975.
Is the population of elephants increasing or decreasing?IncreasingDecreasing - 9. Multiple ChoiceThe expression 12(1.015)t models the population of elephants in a wildlife refuge after t years since 1975.
What does the value 12 represent?The predicted increase in number of elephants in the refuge each year.The predicted decrease in number of elephants in the refuge each year.The number of years it will take for the elephant population to stop increasing.The initial amount of elephants in the park. - 10. Multiple ChoiceThe expression 12(1.015)t models the population of elephants in a wildlife refuge after t years since 1975.
What does the value 1.015 represent?The number of elephants was 1,015 in 1975.The number of elephants increases by 1.5% each year.The number of elephants increases by 101.5% each year.The number of elephants is multiplied by 1.015 each year. - 11. Multiple ChoiceThe amount of ibuprofen (medicine for headaches) breaks down by 30% each hour. If a person took a 200 milligram ibuprofen, how much will be left after 3 hours?5.4 mg68.6 mg.0054 mg2,400,000 mg
- 12. Multiple ChoiceSimplify the expression x(3x)23x29x23x2 + x9x3
- 13. Multiple ChoiceIs the graph exponential growth or decay?Exponential growthExponential decay
- 14. Multiple ChoiceIs the following function exponential growth, exponential decay, linear, or none of the above.
g(x) = 740(.001)3xExponential growthExponential decayLinearNone of the above - 15. Multiple ChoiceIs the following function exponential growth, exponential decay, linear, or none of the above?
p(x) = 13x - 5Exponential growthExponential decayLinearNone of the above - Answer choicesTagsAnswer choicesTags