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

Prove and apply trigonometric identities.

Build new functions from existing functions.

Analyze functions using different representations.

Understand the concept of a function and use function notation.

Build a function that models a relationship between two quantities.

Extend the domain of trigonometric functions using the unit circle.

Model periodic phenomena with trigonometric functions.

Construct and compare linear and exponential models and solve problems.

Define, evaluate, and compare functions.

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

Use functions to model relationships between quantities.
problem_activity: Task
Is there an equilateral triangle $ABC$ so that  $\overline{AB}$ lies on the $x$-axis and $A$, $B$, and $C$ all have integer $x$ and $y$ coordinates?  Explain.


correct_option_index: 1