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

Prove and apply trigonometric identities.

Define, evaluate, and compare functions.

Analyze functions using different representations.

Construct and compare linear and exponential models and solve problems.

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

Extend the domain of trigonometric functions using the unit circle.

Model periodic phenomena with trigonometric functions.

Build new functions from existing functions.

Understand the concept of a function and use function notation.

Build a function that models a relationship between two quantities.

Use functions to model relationships between quantities.
problem_activity: Samantha found the slope of the line that passed through the points
$${(2, 6)}$$
and
$${(-4, 8)}$$
. Her work is shown below.
$${{8-6\over {2-(-4)}} = {2\over 2+4 }= {2\over 6} = {1\over3}}$$
Samantha made an error in her work. Describe the error and then find the correct slope of the line through the two given points.


correct_option_index: 11