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Core Connections Integrated III, 2015

CC

Core Connections Integrated III, 2015 View details

1. Section 9.1

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Exercise 31 Page 443

The graph represents one lap on The Screamer.

Practice makes perfect

If we illustrate the unit circle next to the graph, it is easier to connect each rider's position and describe where they are located.

Notice that A is located after the graph's first peak. Therefore, this passenger must have passed the highest point of The Screamer and is on the way down.

As for Point B, we see that it is below the x-axis. This passenger must therefore be below ground.

For Point C, we see that it is located at the end of a full cycle. Therefore, at this point, the passenger has completed one lap on The Screamer and is back to the starting point.

Subchapter links

9.1.1 Introduction to Periodic Models p.433-434

9.1.2 Graphing the Sine Function p.438-440

9.1.3 Unit Circle ↔ Graph p.442-444

9.1.4 Graphing and Interpreting the Cosine Function p.447-449

9.1.5 Defining a Radian p.452-453

9.1.6 Building a Unit Circle p.456-457

9.1.7 The Tangent Function p.460-461