Chapter 7 Mixed Practice

What values of b make an exponential growth function?

• b > 0
• b <1
• b > 1
• 0 < b < 1

What values of b make an exponential decay function?

• b > 0
• b < 1
• b > 1
• 0 < b < 1

Which the following graphs shows an example of exponential decay?

• 
• 
• 
• 

The value of a car starts at $15,000 and decreases in value at a rate of 8% per year. What is the percent increase as a multiplier?

• ^.80

• ^1.08

• .92

• 8

Which of the following functions shows a starting 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

• Growth
• Decay

• Growth
• Decay

Daniel’s Print Shop purchased a new printer for $35,000. Each year it decreases in value 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

Does the table represent exponential GROWTH or DECAY?

• GROWTH

• DECAY

What is the starting value of the table?

• 4

• -2

• 36

• 3