Solving Exponential Applications

Luke purchased a car for $18,500. It will depreciate (decrease in value) 16% each year. Write an equation to represent the scenario.

• y= 18,500 (1.16)^x

• y= 0.16 (18,500)^x

• y= 18,500 (0.84)^x

• y= 0.84 (18,500)^x

Tags

CCSS.HSF.LE.A.2

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

Twenty years ago, Mr. Davis purchased his home for $160,000. Since then, the value of the home has increased about 5% per year. How much is the home worth today?

• $176,783.29

• $424,527.63

• $57,357.75

• $532,041,076.80

Tags

CCSS.HSF-LE.A.1C

Suppose you deposit $3000 in a savings account that pays interest at an annual rate of 4%.  What is the growth factor?

• .96

• 1.4

• 1.04

• $3000

Tags

CCSS.HSF-IF.C.8B

Since January 1980, the population of the city of Brownville has grown according to the mathematical model y=720,500(1.022)^x, where x is the number of years since January 1980. What is the was the population of Brownville in 1980?

• 102.2 people

• 720,500 people

• 1.022 people

• 1022 people

Tags

CCSS.HSF-IF.C.8B

Identify the percent (%) increase or decrease for the following function. y = 35 (0.94)^x

• Increase by 6%

• Decrease by 0.06%

• Increase by 0.06%

• Decrease by 6%

Tags

CCSS.HSF-IF.C.8B

What is the percent (%) of increase or decrease in the following function?

f(x) = 3000 (1 + 0.4)^x

• Decrease by 4%

• Increase by 4%

• Increase by 40%

• Decrease by 40%

Tags

CCSS.HSF-IF.C.8B

Identify the percent (%) increase or decrease for the function below: f(x) = 3000 (1.17)^x

• Increase by 0.17%

• Increase by 17%

• Decrease by 17%

• Decrease by 0.17%

Tags

CCSS.HSF-IF.C.8B

Identify the percent (%) increase or decrease for the following function. f(x) = 35 (1 – 0.06)x

• Increase by 6%

• Decrease by 0.06%

• Increase by 0.06%

• Decrease by 6%

Tags

CCSS.HSF-IF.C.8B