Post on 31-Dec-2015
5 MINUTE CHECK FROM 3.4
1. If 2x + 5y = –20 and x = 0, what is y?
2. What is the slope of the line containing the points (2, 7) and (3, –10)?
3.5 WRITE & GRAPH EQUATIONS OF LINES Objective(s): Students will
determine equations of lines. Why? So you can find monthly gym
costs, as in Example 4.
Mastery is 80% or better on 5 Minute checks and practice questions.
EQUATIONS FROM GRAPHED LINES
EXAMPLE 1 CONT
EQUATIONS OF PARALLEL LINES
Write an equation of the line passing through the point (– 1, 1) that is parallel to the line with the equation y = 2x – 3.
PARALLEL LINES CONT
DAY 1
Homework 2-22 all Page 175
EQUATIONS OF PERPENDICULAR LINES
PERPENDICULAR LINES CONT
PERPENDICULAR LINES CONT
QUICK WRITE & PAIR SHARE
What have you noticed about Parallel and Perpendicular Lines? Specifically, What have you noticed about the slopes?
Share with a partner after Report out our findings
WITH A PARTNER
ON YOUR OWN
GUIDED PRACTICE
PAIR SHARE
REAL–WORLD APPLICATIONS
CONT…
GRAPHING LINES
WITH A PARTNER GRAPH THE EQUATIONS
EXIT SLIPS
What have you learned today? What was the Objective(s) Students will determine equations
of lines.
HOMEWORK
Page 184-5 # 2-40 even