Exponential Functions Day 1 Lesson

Exponential Functions Day 1 Lesson

Poll

Have you ever had someone start a rumor about you?

• Yes, unfortunately

• No, thank goodness

Multiple Choice

By day 2, how many people would have heard the rumor?

• 9

• 12

• 27

12 people. (6 people times 2 = 12)

Multiple Choice

By day 3, how many people would have heard the rumor?

• 15

• 12

• 24

24 because 12 (from day before) * 2 = 24

Multiple Choice

By day 4, how many people would have heard the rumor?

• 48

• 64

• 24

Multiple Choice

By day 5, how many people would have heard the rumor?

• 48

• 64

• 96

Exponential growth graphs look like this

Multiple Choice

How far is Magnus from the windmill after 2 trips?

• 20

• 30

• 40

Multiple Choice

What is Magnus' distance from the windmill after 3 trips?

• 30

• 20

• 10

Multiple Choice

What is Magnus' distance from the windmill after 4 trips?

• 5

• 15

• 10

This is an example of an Exponential Decay graph

Open Ended

Magnus believes he will reach the windmill after 10 trips. Is he correct? Explain.

He will NEVER reach the windmill!

Multiple Choice

Since f(x) has a base of 2, it is an exponential __________ function

• growth

• decay

Multiple Choice

Since g(x) has a base of 0.5, it's an exponential _________ function

• DECAY

• GROWTH

Multiple Select

Growth or Decay?

What is the base?

• Growth

• Decay

• 1.25

• 10

Multiple Select

Growth or Decay?

What's the base?

• Growth

• Decay

• 5500

• 0.98

Multiple Select

Growth or Decay?

What's the base?

• Growth

• Decay

• 1.05

• 3450

Multiple Select

Growth or Decay?

What's the base?

• Growth

• Decay

• 1.3

• 0.99

Poll

How confident do you feel after this lesson?

• Very

• So-so

• I'm lost