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

Model periodic phenomena with trigonometric functions.

Analyze functions using different representations.

Prove and apply trigonometric identities.

Use functions to model relationships between quantities.

Define, evaluate, and compare functions.

Build a function that models a relationship between two quantities.

Understand the concept of a function and use function notation.

Construct and compare linear and exponential models and solve problems.

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

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

Build new functions from existing functions.
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: 3