Unit 5 Review

b

a

d

c

0.04

A

3,000

t

(1 + 0.04)

The table shows an exponential relationship between the number of employees working for a business based on the time, in years, since the founding of the business.

Create an expression that can be used to determine the number of employees working for the business x years since the founding of the business.

Mathematical Equivalence

ON

• 7

• 272

• 1,449

• 20,000

Is the following function an example of decay or growth?

f(x) = 2(1.25)^x

• Exponential Growth

• Exponential Decay

Pick the equation that is exponential decay

• y=2000(0.88)
• y=0.5(1.88)

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

Identify the initial value:

y = 6.87 (4)^x

• a = 4

• a = 6.87

• a = 3

• a = 1

Daniel’s Print Shop purchased a new printer for $35,000. Each year it depreciates at a rate of 5%. How much will the printer be worth in 8 years?

• $23,219.72
• $136.72
• $51,710.94
• $16,710.94

A zombie outbreak is doubling daily. If there are 25 zombies, how many will there be in 7 days?

• 28

• 175

• 54,675

• 3,200