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Growth or Decay?
8-1
Interpreting Graphs, Tables, Equations
8-2
Writing Exponential Functions
8-3
Simple Interest
3-5
Compound Interest
8-4
100

Is the following growth or decay: y = 2x

growth

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

Which is NOT the name of one of the Darling children in Peter Pan?

a) Wendy

b) Oliver

c) John

d) Michael

b) Oliver

100

Dave opens a savings account that has an annual simple interest rate of 0.1%. If he initially deposits $1500, find the amount in the savings account after 5 years.

$1507.50

100

Use y = 250(1.2)t What is the initial?

 250

200

Is the following growth or decay: y=100(0.5)x

decay

200

Who was the first ever disney princess?

Snow White

200

The population of Baconburg starts off at 20,000, and grows by 13% each year. Write an exponential growth model and find the population after 10 years.

What is f(10) = 20,000(1.13)10 and population of 67,891

200

Victoria deposited $5000 into a savings account that earns an annual simple interest rate of 0.3%. To the nearest tenth of a year, how long will it take for the account to reach $5500?

33.3

200

Use y = 250(1.2)t What is the growth factor?

 1.2

300

Is the following growth or decay: y= 100(1.4)x

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 42, 499 People
300

The Hippityhoppity bunny decided to have a family reunion at the Magic Forest every 5 years. During the second reunion the family discovered that the number of family members was 154 and was growing at an annual rate of 3.2%. Write an equation to model the growth of the bunny family.

What is f(x) = 154(1.032)x

300

Dave opens a savings account that has an annual simple interest rate of 0.15%. If he initially deposits $10,000, find the amount in the savings account after 5 years.

$10,075

300

What are the names of the little fox and the hounds from the movie Fox and the Hound?

a) Ben and Jerry

b) Tom and Jerry

c) Todd and Copper

d) Timon and Pumba

c) Todd and Copper

400

Is the following growth or decay: y = 7 (0.94)x

decay

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

The fish in The Magic Forest Lake were declining at an annual rate at 1.5%. Their current number is estimated at 2500. Write an equation to model the decreasing number of fish.

What is y = 2500(.985)x

400

Which disney character sings "How Far I'll go?"

Moana

400

y = 9.8(1.35)t  What is the growth factor?

1.35

500

Name all 9 emotions from Inside Out 2!

Joy, Sadness, Fear, Anger, Disgust, Anxiety, Enui, Envy, Embarrassment

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

The squid in The Magic Forest Lake were declining at an annual rate at 5.5%. Their current number is estimated at 50,000. Write an equation to predict the number of squid in the lake in 10 years.

What is f(10) = 50000(.945)10 and 28,398 squid

500

Arjun begins the calendar year with $4000 in his bank account. He earns 9% simple interest annually. After how many years will the balance of the account be $6500?

6.9 years

500

y = 9.8(1.35)t What is the growth rate?

35%