Circles You Can Aim, Segments You Can Time

You'll learnto parametrize circles you can aim and line segments you can time.

Cosine and sine already trace the unit circle, and the rest is aiming. Scale them for a new radius, add constants to move the center, and clip the interval to draw only an arc. A line segment works the same way: start at one point and travel a fixed fraction of the way toward the other. Twelve short steps; press Next for each one.

12 STEPS · 6 QUICK CHECKS · CENTER · RADIUS · START · SWEEP · v3

Unit 4 is not assessed on the AP exam; schools include it where local requirements ask.

center and radius are read; start and sweep are evaluated

Before you start

What you're looking at

A point moving around the unit circle, about to be resized, recentred and clipped.

The question

Which parts of the form can you read, and which parts have to be evaluated?

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