Warm Up Day 11 Algebra 1 4B MP 3

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

• Growth
• Decay

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x
• y = 15(1.35)^x
• y = 15(0.35)^x
• y = 35(1.15)^x

Classify the model as Exponential GROWTH or DECAY.
A=10(1.01)³

• Growth
• Decay

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(0.7)^x
• y=30(5000)^x
• y=5000(1.3)^x
• y=5000x^x

The number of mosquitoes at the beginning of the summer was 4,000. The population of mosquitoes is expected to grow at a rate of 25% a month. How many mosquitoes will there be after 4 months?

• 5000

• 9006

• 9765

• 5433

Using the table below, find the equation that matches

• y = 20(2)^x

• y = 20(1/2)^x

• y = 2(20)^x

• y = 20(1.25)^x

What is the equation for the graph of the exponential function?

• y = 4(2)^x

• y = (4)^x

• y = (2)^x

• y = 2(4)^x

The following function represents a bank account. 
g(x) = 200(1.25)^x
What was the initial dollar amount put in the bank?

• $200
• $1.25
• $0.25
• $2.00

The following function represents a bank account.

g(x) = 200(1.25)^x

^{What interest rate did the bank give?}

• 200%

• 1.25%

• 25%

• 2%

Write an equation that presents the population for any year.

• y = x + 5

• y = 5(1)^x

• y = 1.2x + 5

• y = 5(1.2)^x