options: Extend the domain of trigonometric functions using the unit circle.

Analyze functions using different representations.

Understand the concept of a function and use function notation.

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

Build new functions from existing functions.

Construct and compare linear and exponential models and solve problems.

Model periodic phenomena with trigonometric functions.

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

Use functions to model relationships between quantities.

Build a function that models a relationship between two quantities.

Define, evaluate, and compare functions.

Prove and apply trigonometric identities.
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: 11