EXPONENTIAL GROWTH AND DECAY (Formative)

James' 70 in. giant peach doubles in size every week. Write an expression that would represent how big the peach is after 5 weeks.

• 70(2)³⁵
• 70(2)⁵
• 2(70)⁵
• 5(70)²

Tags

CCSS.HSF.BF.A.2

Change 6.75% to a decimal.

• 67.5
• .675
• 675
• .0675

The initial deposit or investment is called 

• Interest
• Principal
• Savings
• Capital gain

Semi-Annually means how many times a year?

• 4 
• 2
• 1
• 6

Monthly means how many times a year?

• 4 
• 12
• 52
• 365

Change 11.2% to a decimal.

• 11.2

• 1.12

• 0.112

• 0.0112

Bruno was given $2000 when he turned 3 years old.  His parents invested it at a 2% interest rate compounded annually.  No deposits or withdrawls were made.  Which expression can be used to determine how much money Bruno had in the account when he turned 16? 

• 2000(1+0.02)¹³
• 2000(1-0.02)¹³
• 2000(1+0.02)¹⁶
• 2000(1-0.02)¹⁶

Tags

CCSS.HSF.BF.A.2

What is the decay rate in the following model?

A=1200(.85)⁶

• 1200

• .15

• .85

• 6

Tags

CCSS.HSF-IF.C.8B

The expression 12(1.015)^t models the population of elephants in a wildlife refuge after t years since 1975.
Is the population of elephants increasing or decreasing?

• Increasing
• Decreasing

Tags

CCSS.HSF-IF.C.8B

A collectible car has been going up in price by 10% each year. If the car is already worth $29,000, how much will the car be worth in 5 years?

• $0.29
• $2,900,000,000
• $46,704.79
• $145,000

Tags

CCSS.HSF-LE.A.1C