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# Unit: Trigonometry

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#### 0

Possible mastery points

## Unit circle introduction

Practice
Unit circleGet 3 of 4 questions to level up!

## Radians

Practice
Radians & degreesGet 3 of 4 questions to level up!
Unit circle (with radians)Get 3 of 4 questions to level up!

## The Pythagorean identity

Practice
Use the Pythagorean identityGet 3 of 4 questions to level up!

## Trigonometric values of special angles

Practice
Trig values of special anglesGet 3 of 4 questions to level up!

#### Quiz 1

Level up on the above skills and collect up to 500 Mastery points

## Amplitude, midline and period

Practice
Midline of sinusoidal functions from graphGet 3 of 4 questions to level up!
Amplitude of sinusoidal functions from graphGet 3 of 4 questions to level up!
Period of sinusoidal functions from graphGet 3 of 4 questions to level up!

## Transforming sinusoidal graphs

Practice
Amplitude of sinusoidal functions from equationGet 3 of 4 questions to level up!
Midline of sinusoidal functions from equationGet 3 of 4 questions to level up!
Period of sinusoidal functions from equationGet 3 of 4 questions to level up!

#### Quiz 2

Level up on the above skills and collect up to 600 Mastery points

## Graphing sinusoidal functions

Practice
Graph sinusoidal functionsGet 3 of 4 questions to level up!
Construct sinusoidal functionsGet 3 of 4 questions to level up!
Graph sinusoidal functions: phase shiftGet 3 of 4 questions to level up!

## Sinusoidal models

Practice
Interpreting trigonometric graphs in contextGet 3 of 4 questions to level up!
Modeling with sinusoidal functionsGet 3 of 4 questions to level up!
Modeling with sinusoidal functions: phase shiftGet 3 of 4 questions to level up!

#### Quiz 3

Level up on the above skills and collect up to 600 Mastery points
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#### Unit test

Level up on all the skills in this unit and collect up to 1700 Mastery points!

### About this unit

In Geometry, students learned about the trigonometric ratios sine, cosine, and tangent. In this unit, we extend these ideas into functions that are defined for all real numbers! We learn about the behavior of those functions and use them to model real-world situations.