Exercises: Choosing Trigonometric Functions to Model Periodic Phenomena

Show your work for each problem. Express answers involving pi using exact form (e.g., pi/4) unless otherwise stated.

Grade 9·24 problems·~30 min·Common Core Math - HS Functions·group·hsf-tf-b-5

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Warm-Up: Review What You Know

These problems review skills you have already learned.

At $t = 0$ , a quantity is at its maximum value and then decreases. Which function best describes this starting behavior?

$y = \sin(t)$

$y = \cos(t)$

$y = -\sin(t)$

$y = \tan(t)$