standard_description: Use congruence and similarity criteria for triangles to solve problems and to prove relationships in geometric figures.
problem_activity: Problem 1
Show students Graph 21 from
Which One Doesn't Belong: Graphs and Equations
.
Problem 2
Do this Desmos activity,
Sine Transformations
, with students.
Problem 3
Write both a sine and cosine function that model the graph shown below.
[IMG]


aligns: no