The exponential function f(x)=1200⋅1.065 x models the amount of money in Jessica's retirement account (where x represents the number of years since the initial investment). Which of the following statements is true?

Jessica initially invested $1,200 in the account.

Jessica invests $1,200 into the account each year.

Jessica's account is increasing in value by 10.65% each year.

It takes 1.065 years for the account to start increasing in value.

The exponential function f(x)=1200⋅1.065 x models the amount of money in Jessica's retirement account (where x represents the number of years since the initial investment). Which of the following statements is true?

Jessica's account is increasing in value by 6.5% each year.

Jessica's account is increasing in value by 106.5% each year.

Jessica's account is increasing in value by 1.065% each year.

Jessica's account is increasing in value by 0.65% each year.

The exponential function f(x)=125,000⋅(0.98) x models the value of Eric's home (where x represents the number of years since he purchased it). Which statement is true about the value of Eric's home?

Eric's home is decreasing in value by 2% each year.

Erica home is increasing in value by 0.98% each year.

Eric's home is decreasing in value by 0.98% each year.

Eric's home is increasing in value by 9.8% each year.

Percent Growth and Decay

Quiz

•

Mathematics

•

9th - 10th Grade

•

Practice Problem

•

Hard

•

CCSS

HSF-IF.C.7E, HSF.LE.B.5, HSF-LE.A.1C

+4

Standards-aligned

Barbara White

Used 1+ times

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)^x

Growth

Decay

Tags

CCSS.HSF-IF.C.8B

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Is the following graph growth or dacay?

Growth

Decay

Tags

CCSS.HSF-IF.C.7E

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Pick the equation that is exponential growth

y=2(0.5)^x

y = 0.5(2)^x

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Pick the equation that is exponential decay

y=2000(0.88)

y=0.5(1.88)

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

Growth

Decay

Linear

None

Tags

CCSS.HSF-IF.C.7E

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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

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