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Exponential Growth and Decay

Authored by Megan Foughty

Mathematics

9th Grade

Used 11+ times

Exponential Growth and Decay
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

What is the base if the common ratio is 1.67?

1.67

2.67

0.0167

0.167

2.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

What is the base if it quadruples every day?

2

1/4

4

3

3.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

What is the base if it is 145% of the original?

0.145

14.5

145

1.45

4.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

What is the base for a half-life?

1.5

1/2

2

1/4

5.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

Acetaminophen has a half-life every hour. If you take 400mg, how much is left in your body after 2 hours?

400mg

1600mg

100mg

200mg

6.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

The population of Coweta is currently 159,000 and is growing at a common ratio of 1.9, what will the population be in 4 years? **Round to the nearest whole number.

2,544,000 people

2,000,000 people

207 people

2,072,104 people

7.

MULTIPLE CHOICE QUESTION

1 min • 10 pts

James' 70 in. giant peach doubles in size every week. Write an expression that would represent how big the peach is after 5 weeks.

70(2)35
70(2)5
2(70)5
5(70)2

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