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Investigation Notebook and Reflection Journal - McGraw-Hill Higher ...

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CHAPTER<br />

8<br />

Contents in Brief<br />

8.1 Rates 368<br />

8.2 Speed <strong>and</strong> Slope 389<br />

8.3 Recognize Linear Relationships 410<br />

Review & Self-Assessment 431<br />

Linear<br />

Relationships<br />

Real-Life Math<br />

This chapter begins by explaining that speed is a relationship<br />

between time <strong>and</strong> distance. The British Eurostar is introduced, <strong>and</strong><br />

it is described as reaching speeds of 186 mph on l<strong>and</strong> <strong>and</strong> 80 mph<br />

in the Chunnel, the tunnel under the English Channel that<br />

connects Britain to France.<br />

Think About It<br />

Do you think it would take the Eurostar longer to travel 160 miles<br />

on l<strong>and</strong> or through the Chunnel? How do you know?<br />

How do you think you could find the distance that the Eurostar<br />

travels on l<strong>and</strong> in 30 minutes?<br />

Connections to the Past (Course 1, Chapter 8)<br />

Plot each point on the coordinate grid.<br />

Label each point with its letter.<br />

Point A: (-2, -1) Point B: (0, 1)<br />

Point C: (3, 2.5) Point D: (-3, -1.5)<br />

4<br />

3<br />

2<br />

1<br />

y<br />

-3-2 1 2 3 4 5 6x<br />

-2<br />

-3<br />

-4<br />

Copyright © Glencoe/<strong>McGraw</strong>-<strong>Hill</strong>, a division of The <strong>McGraw</strong>-<strong>Hill</strong> Companies, Inc.<br />

76 <strong>Investigation</strong> <strong>Notebook</strong> <strong>and</strong> <strong>Reflection</strong> <strong>Journal</strong>

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