options: Build a function that models a relationship between two quantities.

Prove and apply trigonometric identities.

Interpret expressions for functions in terms of the situation they model.

Use functions to model relationships between quantities.

Interpret functions that arise in applications in terms of the context.

Construct and compare linear and exponential models and solve problems.

Define, evaluate, and compare functions.

Build new functions from existing functions.

Model periodic phenomena with trigonometric functions.

Understand the concept of a function and use function notation.

Analyze functions using different representations.

Extend the domain of trigonometric functions using the unit circle.
problem_activity: Problem 1
[IMG]
The radius of the circle above is
$$1$$
, and it is centered at the origin. This is called a “unit circle.” Find the coordinates of the point marked at
$${45^{\circ}}$$
.
Problem 2
[IMG]
The radius of the circle above is
$$1$$
, and it is centered at the origin. Find the coordinates of the point marked at
$$150^{\circ}$$
.


correct_option_index: 11