Growth or Decay?
Is the following growing or decaying?
f(x)=2x
Growing
f(x)=38,300(1.012)x
What is f(9)?
42,641
y = 250(1.2)x
What is the initial amount?
250
Write an exponential equation to model the situation. A population of 422,000 increases by 1.12 each year.
y=422,000(1.12)x
What is 27?
128
Is the following growth or decay?
f(x)=100(0.5)x
Decay
f(x)=1200(1.032)x
What is f(12)?
1,751.21
y = 250(1.2)x
What is the growth factor?
1.2
The population of Baconburg starts off at 20,000, and grows by 1.13 each year. Write an exponential equation.
y=20,000(1.13)x
What is 8000?
1
Is the following growth or decay?
f(x)=100(1.4)x
Growth
f(x)=42,500(1.027)x
What is f(5)?
48,556
y=100(0.94)x
What is the growth factor?
0.94
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 a rate of 1.20. Write an equation to model the growth of the bunny family.
y=154(1.2)X
What is 2-2?
1/4
Is the following growth or decay?
f(x)=7(0.94)x
Decay
The value of a car was $22,000 when it was purchased. They value of the car remains at a rate of 0.81. How much will the car be worth in 8 years?
$4,076.64
y = 9.8(1.35)x
What is the initial amount?
9.8
The fish in The Magic Forest Lake were decreasing by 1/3. Their current number is estimated at 2500. Write an equation to model the decreasing number of fish.
y=2500(2/3)x
What is (23)(26)?
Rewrite this as an exponent, DO NOT PUT IT IN THE CALCULATOR.
29
Is the following growth or decay?
f(x)=350(1.2)x
Growth
The value of a stock when purchased is $10 a share. However, over the past 5 days the price went down. 0.96 of the value remains. How much is the stock worth now?
$8.15
y = 9.8(1.35)x
What is the growth factor?
1.35
The squid in The Magic Forest Lake were declining by 1/4. Their current number is estimated at 50,000. Write an equation to model the squid population.
y=50,000(3/4)x
What is 69549459403300?
1