Chapter 7 Mixed Practice (Exponentials)

How do you identify exponential decay from a table?

• Increasing values that change by constant addition.

• Decreasing values that change by constant multiplication.

• Decreasing values that change by constant subtraction.

• Increasing values that change by constant multiplication.

Which of the following equations are an example of exponential growth?

Which of the following tables matches this exponential graph?

• 
• 
• 
• 

What is the multiplier used for a 7.5% decrease?

• b = 7.5

• b = 0.75

• b = 0.075

• b = 0.925

There were 10 zombies at the start of the outbreak. If the number of zombies quadruples every day, how many will there be after 1 week?

• 40 zombies

• no zombies, my math teacher destroyed them all

• 163,840 zombies

• 40,960 zombies

You put $200 into a savings account. Each month you earn 2% interest. How much will be in the account after 3 years (36 months)?

• $212.24

• $200

• $253.64

• $407.97

• 30

• 0.37

• 3.33

• 90

• 15.625

• 250

• 4000

• 62.5

What is the multiplier for a 27% increase?

• b = 0.27

• b = 27

• b = 1.27

• b = 0.73

Which equation matches this table of values?