Warm – up #6

Homework Log Fri 11/6 Lesson 3 – 4 Learning Objective: To write equations in standard form & graph piecewise functions Hw: #307 Pg. 192 #9 – 39 odd

11/6/15 Lesson 3 – 4 Linear Functions Advanced Math/Trig

Learning Objective To write equations in standard form To graph piecewise functions

Write an equation in standard form Or you already know the slope and y-intercept y= mx + b y = 1x + 3 x – y = –3

Parallel & Perpendicular Lines Parallel Lines have the SAME slope Perpendicular Lines have OPPOSITE RECIPROCAL slopes (flip fraction & change sign)

Write a Linear Equation

3. Write an equation in Slope-Intercept Form of the line with y-intercept of 5 and parallel to 9x – 7 = 3y Parallel slope = 3 y–intercept = 5 y = 3x + 5

Piecewise Function (Broken Line)  Close x = 2  Open x = 2 xy

Piecewise Function  Open x = 1  Closed x = 1 xy 1 0 –

Piecewise Function  Closed x = 3  Open x = 3 xy – –1 –2 –3

Piecewise Function  Open x = –1  Closed x = –1 xy –1 –2 –3 1 –2 –5 –

Ticket Out the Door

Homework #307 Pg. 192 #9 – 39 odd