Key Features Expon. f(x)'s
Growth or Decay
Percent Rate
Word Problems
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100

If, y=a(b)x , What do the varaibles represent? 



a=initial amount/y-intercept

b=multiplier

100

A bunny population doubles every 6 months.  If the starting population is 10, how many will you have after 3 years?  What is the initial population?  What is the growth factor?


initial population = 10

growth rate = 2

100

What is the percent growth/decay rate?

y=5(0.5)^x

50%

100


2243

100

Name the song:

"Cause the players gonna play, play, play, play, play..."

Shake It Off

200

What is the y-intercept and multiplier for the function f(x)=2(3)x  

y-intercept=2

multiplier= 3

200

In exponential functions, when b>1 this will cause an exponential growth or decay?

Exponential growth

200

What is the percent growth/decay rate?

y=5(1.3)^x

30%

200

What will be the cost in 17 years?

$32,313.27

200

What is Taylor's second album?

Fearless

300

What is the y-intercept and range?

y-intercept = (0, 1)

range  y > 0


300

f(x)=-4(1.07)x

Does this functions represent exponential growth or decay? What's the percent growth/decay factor?

Exponential Growth.  7%.

300

What is the percent growth/decay rate?

y=(0.01)^x

99% Decay

300


16,941 people

300

What is the name of Taylor's new album?

Double points if you know when it will be released!

The Tortured Poets Department 

April 19th

400

What's the multiplier?

b=2

400

Does the graph represent exponential growth or decay?

Exponential Growth

400

Is this exponential growth or decay?

What is the percent growth/decay rate?

y=1/2(0.7)^x

Decay.  30%

400

Is the function exponential growth or decay? What is the multiplier (common ratio)? 

Decay  (.50)  or 

1/2

400

What are the names of Taylor Swift's cats?

Benjamin, Olivia, and Meredith

500

What is the difference between linear functions and Exponential functions

Linear has a constant difference or rate of change

Exponential has a multiplier or common ratio

500

Annual sales of a fast food restaurant are $530,000 and increasing at a rate of 5%. What will the annual sales be in 6 years? 

530,000(1.05)=$710,250.69

500

What is the percent growth/decay rate?

y=60(1.33)^x

33%  Growth

500

If you put $500.00 into an account and the account earns 3% interest each year. How much will be in the account after 5 years?

$579.64

500

How long was Taylor Swift shown on TV at the Super Bowl?

ONLY 54 seconds

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