Unit 5 - Exponential Functions

The function C(x) = 3(2)^x can be used to determine the number of bacteria, C(x), in a sample after x days. Which of the following statements is NOT true

• There were initially 2 bacteria in the sample

• There were initially 3 bacteria in the sample

• The number of bacteria doubles every day

• The number of bacteria is growing exponentially

Tags

CCSS.HSF.LE.B.5

The population of bald eagles in North Carolina can be modeled by the function E(x) = 236(0.94)^x. Which of the following statements best describes the population change?

• the population is increasing by 6%

• the population is decreasing by 6%

• the population is increasing by 94%

• the population is decreasing by 94%

Tags

CCSS.HSF-IF.C.8B

Mrs. Mills started a saving account with $15. She plans to double her money every month. After how many months will Mrs. Mills have at least $500

Mathematical Equivalence

ON

Describe this function.

• Exponential Growth

• Exponential Decay

• Linear Positive

Tags

CCSS.HSF-IF.C.7E

Mathematical Equivalence

ON

Tags

CCSS.HSF-IF.C.8B

• Exponential Growth

• Exponential Decay

• Quadratic

Tags

CCSS.HSF-IF.C.7E

Identify the y-intercept (initial value) in the function f(x)=13(.27)^x

• (.27)^x
• .27
• 13
• 3.51

Tags

CCSS.HSF-IF.C.7E

Which does y= 2(.5)^x represent?

• Exponential Growth

• Exponential Decay

Tags

CCSS.HSF-IF.C.8B

In an exponential function, what does the 'a' represent? 

• SLOPE
• RATE OF CHANGE
• Y-INTERCEPT
• COMMON RATIO

Tags

CCSS.HSF.LE.B.5

Classify the model as Exponential GROWTH or DECAY.
A=1200(1.85)⁶

• Growth
• Decay

Tags

CCSS.HSF-IF.C.8B