2.3 Composition of Functions

Comic of the Day

Warm Up
The circumference of a circle (using function notation) is given by C(d)=πd, where d is the diameter.  But we know that the diameter is twice the radius, or (again, using function notation), d(r)=2r.
Determine C(r), the circumference as a function of the radius.

Announcements
Assignment 1 (Getting to Know You) due on Moodle by Friday
Next quiz Fri Jan 11 (cover 1.1, 10.2, 2.2-2.4)
Next unit exam Fri, Jan 25 (55 minutes, in class)

2.3 Composition of Functions
Notes 

Homework
2.3 #1-15 odd, #39-49 odd (skip #43 & 45)

Tomorrow
Pre-read 2.4 Radical Functions (Transformations)

For more information
https://www.khanacademy.org/math/trigonometry/functions_and_graphs/function_introduction/e/functions_3