Exponential Functions

What is a, the initial amount, for the function: f(x) = 300(1.16)^x?

• 300
• 1.16
• .16
• x

Tags

CCSS.HSF.LE.B.5

Write the equation that represents the table below:

• y=1/2(4)^x
• y=2(4)^x
• y=4(2)^x
• y=4(1/2)^x

Tags

CCSS.HSF.LE.A.2

Is y = 5(1.04)^x growth or decay?

• Growth

• Decay

Tags

CCSS.HSF-IF.C.8B

The 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?

• Increasing
• Decreasing

Tags

CCSS.HSF-IF.C.8B

A 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

Tags

CCSS.HSF-LE.A.1C

The population of wolves in a certain place was 5,450 in 2013. Each year the population has decreased by 5%. What equation models the population of wolves since 2013?

• p(x) = 5450 - 95x

• p(x) = 5450(0.05)^x

• p(x) = 5450(0.95)^x

• p(x) = 5450 (1.05)^x

Tags

CCSS.HSF.LE.A.2

Is this exponential growth or decay?

• Growth
• Decay
• Linear

Tags

CCSS.HSF-IF.C.7E

The 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%

Tags

CCSS.HSF-IF.C.8B