Growth or Decay? Linear or Exponential
Applying Exponential Equations
Initial Amount, Growth Factor, and Growth Rate
Writing Exponential Functions
Negative and Zero Exponents
100
Is this linear or exponential? 
exponential
100
The population in the town of Huntersville is presently 38,300. The town grows at an annual rate of 1.2%. Find the number population of the town after 9 years.
Approximately 42,640 people
100
Use y = 250(1.2)t What is the initial value?
What is 250
100
Write an exponential growth function to model the situation. A population of 422,000 increases by 12% each year.
What is f(x) = 422,000(1.12)x
100
(x^5)^3/x^2
x13
200
growth or decay?
What is decay
200
$1,200 is invested at an annual rate of 3.2%. How much money will the account have after 12 years?
$1751.21
200
Use y = 250(.2)t What is the growth/decay rate as a percentage ?
80% decay
200
5
200
Simplify: (4x-3y)2
16y2/x6
300
Is the following growth or decay: f(x)= 100(1.4)x
What is growth
300
The population in the town of Deersburgh is presently 42,500. The town has been growing at a steady rate of 2.7%. What will the population of the town be in 5 years?
Approximately 48,555 People
300
Use y = 250(1.2)t What is the growth/decay rate as a percentage ?
What is 20% growth
300
The family reunion had 154 members and was growing at an annual rate of 3%. Write an equation to model the growth of the family.
What is f(x) = 154(1.03)x
300
Simplify: (-3x5y7)0
1
400
There are 350 books in the library and the amount quadruples each year. Is this function linear or exponential??
What is exponential
400
The value of a car was $22,000 when it was purchased. They car depreciates at a rate of 19% per year. How much will the car be worth in 8 years?
$4,076.64
400
y = 9.8(1.35)t What is the growth/decay rate as a percentage ?
What is 35% growth
400
The fish in The Magic Forest Lake were declining at an annual rate at 2%. Their current number is estimated at 2500. Write an equation to model the decreasing number of fish.
What is y = 2500(.8)x
400
Simplify: (2x3y5z)3
8x9y15z3
500
is this table linear or exponential?
What is linear
500
The value of a stock when purchased is $10 a share. However, over the past 5 days the price went down at a constant rate of 4%. How much is the stock worth now?
$8.15
500
y = 9.8(0.89)t What is the growth/decay rate as a percentage ?
What is 11% decay
500
Josh had $650 to invest.
Account A has an 8% interest growth rate annually
Account B it gains $40 each year
What are the amounts each account will be in 6 years. Which account will have more $?
Account A 650(1+.08)6 = 1031.47
Account B y=40(8)+650 = 970Account A
500
(-3x5)(6x)
2x3
-9x3