Exponential Percent Growth

Exponential Percent Growth

9th Grade

20 Qs

quiz-placeholder

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Exponential Percent Growth

Exponential Percent Growth

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Anthony Clark

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

y = 15(35)x

y = 15(0.35)x

y = 15(1.35)x

y = 35(1.15)x

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The number of mosquitoes at the beginning of the summer was 4,000. The population of mosquitoes is expected to grow at a rate of 25% a month. How many mosquitoes will there be after 4 months?

9765

9006

5433

9766

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There were 417 cell phones sold at an electronics store in January. Since then, cell phone sales at this store have increased at a rate of 3.75% per month. At this rate of growth, which function can be used to determine the monthly cell phone sales x months after January?

f(x) = 417(3.75)x

f(x) = 417(0.0375)x

f(x) = 417(1.0375)x

f(x) = 417(1.375)x

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A child asks her dad for an allowance that starts with a penny and then doubles every day for a month. Which function can be used to model the amount of money, A, the child will receive each day, x?

A(x) = 2(0.01)x

A(x) = 0.01(2)x

A(x) = 0.01(1 - 2)x

A(x) = 2(1.01)x

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Marilyn collects old dolls. She purchases a doll for $450. Research shows this doll's value will increase by 2.5% each year. Write an equation that determines the value, V, of the doll t years after purchase.

V = 450(1 + 0.025)t

V = 450(1 – 0.025)t

V = 450(1 + 2.5)t

V = 450(1 – 2.5)t

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

1.4%

2.8%

14%

28%

7.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

Which of the following could be represented by A=200(1.1)t

I started with $200 and lost 1% per week

I started with $200 and lost 10% per week

I started with $200 and gained 1% per week

I started with $200 and gained 10% per week

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