options: Build new functions from existing functions.

Build a function that models a relationship between two quantities.

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

Prove and apply trigonometric identities.

Model periodic phenomena with trigonometric functions.

Define, evaluate, and compare functions.

Analyze functions using different representations.

Extend the domain of trigonometric functions using the unit circle.

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.

Understand the concept of a function and use function notation.
problem_activity: Find two values where
$${\mathrm{cos}x=-1}$$
.
What is
$${\mathrm{arccos}(-1)}$$
?


correct_option_index: 4