03/22 Exponential Growth/Decay

What does the model y=a(1+r)^x best represent?

• Exponential growth

• Simple Interest

• Compound Interest

• Exponential Decay

Tags

CCSS.HSF-IF.C.8B

What type of function is f(x)=2(1/7)^x ?

• Exponential Growth
• Linear
• Exponential Decay
• None of the Abovee

Tags

CCSS.HSF-IF.C.8B

Suppose a culture of bacteria begins with 2000 cells and dies by 25% each year. Write an equation that represents this situation.

• y=2000(0.75)^x

• y=25(2000)^x

• y=2000(1.25)^x

• y=2000x^x

Tags

CCSS.HSF.LE.A.2

What is the pattern you see in this table?

Common Ratio = Growth factor

Look at the Y-values. How are they changing?

• Common Ratio = 1/3

• Common Difference = 8

• Common Ratio = 3

• Common difference = 3

Tags

CCSS.HSF.BF.A.2

Write the equation that represents the table below:

• y=1/2(4)^x
• y=2(4)^x
• y=4(2)^x
• y=4(1/2)^x

Tags

CCSS.HSF.LE.A.2

What is the equation that represents the exponential function in the image below?

• y=3(½)^x
• y=3(2)^x
• y=(2)^x
• y=2(3)^x

Tags

CCSS.HSF.LE.A.2

What type of function is y = 7(5/4)^x?

• Exponential Growth
• Exponential Decay
• Linear
• None of the above

Tags

CCSS.HSF-IF.C.8B

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

A population of fish starts at 8,000 and decreases by 6% per year. What is the population of fish after 10 years?

• 14327
• 4309
• 839
• 7680

Tags

CCSS.HSF-LE.A.1C

A stamp gets more expensive each year. It increases in value by 60% each year. What is the growth FACTOR?

• .60

• 1.06

• 1.60

• .40

Tags

CCSS.HSF-LE.A.1C