Is It Exponential Growth or Decay

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

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

Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y=6(0.14)^x

• y=6(1+14)^x

• y=6(1.14)^x

• y=6(0.86)^x

Tags

CCSS.HSF.LE.A.2

Is this exponential growth or decay?

• Growth

• Decay

• Linear

Tags

CCSS.HSF-IF.C.7E

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(0.7)^x

• y=30(5000)^x

• y=5000(1.3)^x

• y=5000x^x

Tags

CCSS.HSF.LE.A.2

Is this exponential growth or decay?

• Growth

• Decay

Tags

CCSS.HSF-IF.C.8B

Is y = 5(1.04)^x growth or decay?

• Growth

• Decay

Tags

CCSS.HSF-IF.C.8B

Is y = 4(.20)^x growth or decay?

• Growth

• Decay

Tags

CCSS.HSF-IF.C.8B

What is the decay rate in the following model?

• 1200

• .15

• .85

• 6

Tags

CCSS.HSF-LE.A.1C

What is the decay factor in the following model?
A=1200(.85)⁶

• 1200

• -.15

• .85

• A

Tags

CCSS.HSF-IF.C.8B