Scribe_Post

Briggs Buckley

World of Functions

Next Scribe - Matt Sattler

Homework Due –

• Homework 10 – Difficult Denominators
  
• Homework 11 – An Average Drive
  

Homework Assigned –

• Numbers 25 – 38 odds in Handout Packet
  

Class Agenda

1. Finish & Review “Return of the Shadow”
   
2. Go over Homework 10 & 11
   
3. Begin Rational Functions
   

Class Notes

1. Reviewed how to solve Return of the Shadow:
   
2. Notes – Domain: The set of all inputs that make sense
   

Comes from two places: 1. The function, and 2. The situation

Homework 10:

• Noticed Verticle asymptotes (A place where the function is undefined). Observations from the class concluded that the functions could get close, but would never cross the vertical line.
  

Homework 11:

• Class noticed both Vertical & Horizontal asymptotes.
  
• Noticed (through a horizontal asymptote graph, that as x gets bigger, y gets closer and closer to 25.
• The Class came up with two equivalent equations to help solve the homework:
  

y = 100 / 4 - (100/x) and y= 100x / 4x-100

Rational Functions:

• f(x) = P(x) / Q(x)
  
• Both the P(x) and Q(x) are polynomial
  

We Talked about:

• How to simplify
  
• The Domain / Range
  
• How to Add/Subtract/Multiply/Divide
  
• Graphs
  
• Find Common denominator when adding / subtracting
  
• Multiply straight across
  
• Stay, dot, flop when dividing
  

FACTOR FIRST!!!!!!! – Mr. Marchetti

Other Notes About the Day:

1. Zolla came in & made a call using a students cell phone
   
2. Joe & Zolla got into another heated politics debate (Zolla walked out)
   
3. Mr. Marchetti told everyone that he was 34 (there was discussion as to how young he looked… Mostly by Erin M.)