QUIZ RE-TAKE Exponential Functions

Is the pictured graph growth, decay, or linear or none?  

• Exponential Growth
• Exponential Decay
• Linear
• None

Tags

CCSS.HSF-IF.C.7E

Is this exponential growth or decay?

• Growth
• Decay

Tags

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.3

Is this exponential growth or decay?

• Growth, because of 7
• Decay, because of 1.2
• Growth because of 1.2
• Decay because of 7

Tags

CCSS.HSF-IF.C.8B

Identify the y-intercept (initial value) in the function

f(x)= 13(.27)^x

• (.27)^x

• .27

• 13

• 1+.27

Tags

CCSS.HSF-IF.C.7E

What is the exponential factor of the following graph?

• Growth

• Deccay

• Linear

• None

Tags

CCSS.HSF-IF.C.7E

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the decay factor, "b"?

• ^.08

• ^1.08

• .92

• 8

Which of the following functions shows an initial 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

Tags

CCSS.HSF.LE.A.2

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 percentage increase of the population annually?

• 720,500%
• 102.2%
• 2.2%
• 22%

Tags

CCSS.HSF-IF.C.8B

An adult takes 800 mg of ibuprofen. Each hour, the amount of ibuprofen in the person’s system decreases by about 29%. How much ibuprofen is left after 6 hours? 

• 101
• 102
• 103
• 104

Tags

CCSS.HSF.LE.A.4

A bacterial colony doubles in size every 6 hours.  There are 90 bacteria present initially. Estimate the population size after 80 hours. What is the answer?

• 1.088 e²⁶
• 94
• 928,914
• 5760

Tags

CCSS.HSF.LE.A.4