options: Model periodic phenomena with trigonometric functions.

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

Use functions to model relationships between quantities.

Understand the concept of a function and use function notation.

Build new functions from existing functions.

Analyze functions using different representations.

Extend the domain of trigonometric functions using the unit circle.

Define, evaluate, and compare functions.

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

Build a function that models a relationship between two quantities.

Prove and apply trigonometric identities.

Construct and compare linear and exponential models and solve problems.
problem_activity: A store is having a sale to clear out merchandise. If you spend between $0 and $100, you can take 15% off of your total. If you spend over $100, you can take 25% off of your total.
Write an equation to represent your discounted total if you spend between $0 and $100.
Write an equation to represent your discounted total if you spend over $100.
Which graph best represents the situation?
[IMG]


correct_option_index: 1

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