U5 - Mid Unit Check

In Unit 5 "Exponential and Logarithmic Functions" we learned a lot about modeling exponential situations. Which of the following is not exponential?

In an exponential function, what does the 'a' represent?

• Slope

• Initial Amount

• Growth or Decay Factor

• Future Amount

Tags

CCSS.HSF.LE.B.5

In an exponential function, what does the 'b' represent?

• Slope

• Initial Amount (Also the Y-Intercept)

• Growth or Decay Factor

• Future Amount

Tags

CCSS.HSF.LE.B.5

How is b calculated?

• b = rate

• b = 1 plus rate for growth

  b = 1 minus rate for decay

• b is always 1/2

• b = the initial amount

Tags

CCSS.HSF-IF.C.8B

In a lab experiment, a population of 500 bacteria is able to triple every hour. 4 hours of time has passed.

Which of the following is false.

• a = 500

• b = 3

• x = 4

• b = .03

Tags

CCSS.HSF.LE.B.5

In a lab experiment, a population of 500 bacteria is able to triple every hour. Which equation matches the number of bacteria in the population after 4 hours?

• 500

• 22,500

• 40,500

• 60,500

Tags

CCSS.HSF.LE.A.2

Joseph has a collection of vintage action figures that is worth $460. If the collection appreciates at a rate of 6% per year. He keeps the collection for 7 years.

Which of the following is false?

• a = 460

• b = .06

• b = 1.06

• x = 7

Tags

CCSS.HSF.BF.A.2

Joseph has a collection of vintage action figures that is worth $460. If the Joseph has a collection of vintage action figures that is worth $460. If the collection appreciates at a rate of 6% per year, what is the value of the collection after 7 years?

• $691.67

• $545.45

• $321.08

• $1264.38

Tags

CCSS.HSF.BF.A.2

A new car is purchased for 28,600 dollars. The value of the car depreciates at a rate of 9.1% per year. The car is kept for 2 years.

Which of the following is false?

• a = 28600

• b = 1.091

• b = .909

• x = 2

Tags

CCSS.HSF.BF.A.2

A new car is purchased for 28,600 dollars. The value of the car depreciates at a rate of 9.1% per year. Which equation represents the value of the car after 2 years?

• $23,631.64

• $34042.04

• $18,649.17

• $17,996.28