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Exponential Decay

Authored by Maureen Mariano

Mathematics

9th - 12th Grade

10 Questions

CCSS covered

Used 5+ times

Exponential Decay
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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the exponential equation?

y=8(15,000)x

y=15,000(1 + .08)x

or y=15,000(1.08)x

y=15,000(0.92)x

or y=15,000(1 - .08)x

y=15,000(0.08)x

Tags

CCSS.HSF.LE.A.2

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Daniel’s Print Shop purchased a new printer for $35,000. Each year it depreciates at a rate of 5%. How much will the printer be worth in 8 years?

$23,219.72
$136.72
$51,710.94
$16,710.94

Tags

CCSS.7.RP.A.3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

You buy a new computer for $2100. The computer decreases by 50% annually. How much is it worth after 2 years.

225
325
425
525

Tags

CCSS.HSF.BF.A.2

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The population of Bloom Falls, Mass. (population 937) is slowly moving to a bigger city.
Every year the population drops by 4.5%. What is the population after 3 years?

1,069 people
894 people
816 people
854 people

Tags

CCSS.HSF-LE.A.1C

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The Country of Puerto has 3,370,000 people in it and is decreasing at a rate of 4.5%. Estimate the population after 40 years.

534,275

19,601,148

1,350,756

2,521,541

Tags

CCSS.HSF-LE.A.1C

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A population of 1500 deer decreases by 1.5% per year. At the end of 10 years, there will be approximately 1290 deer in the population. Which function can be used to determine the number of deer, y, in this population at the end of t years?

y = 1500(1 - 0.015)t
y = 1500(0.015)t
y = 1500(1 + 0.015)t
y = 1500(1.5)t

Tags

CCSS.HSF.LE.A.2

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