pick up your new packet and find your seat. silently start your warm-up for tuesday
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Welcome Back!. Tuesday. What is the slope of the line -5x – 2y = 22?. Pick up your new packet and find your seat. Silently start your warm-up for Tuesday. IW. Learning Target:. IWBAT write the equation of a perpendicular line in various situations. - PowerPoint PPT PresentationTRANSCRIPT
Tuesday
1. What is the slope of the line -5x – 2y = 22?
1. Pick up your new packet and find your seat.
2. Silently start your warm-up for Tuesday.
Learning Target:
IWBAT write the equation of a perpendicular line in various situations.
Welcome Back!
Silently work on your Warm UpYou have 5 minutes
Learning Target:
Learning Target:
IWBAT write the equation of a perpendicular line in various situations.
Don’t forget to write your Learning Target
You have 4 minutes
Learning Target:
IWBAT demonstrate several ways it is important to solve for y
Learning Target:
IWBAT write the equation of a perpendicular line in various situations.
Make Sure You Answer All of the Questions
You have 3 minutes
Learning Target:
IWBAT demonstrate several ways it is important to solve for y
Learning Target:
IWBAT write the equation of a perpendicular line in various situations.
Done? Answer the Reflection Question!You have 2 minutes
Learning Target:
IWBAT demonstrate several ways it is important to solve for y
Learning Target:
IWBAT write the equation of a perpendicular line in various situations.
Time’s Almost Up!Make sure you have your name on BOTH
sides of your AEM
You have 1 minute
Learning Target:
IWBAT demonstrate several ways it is important to solve for y
Learning Target:
IWBAT write the equation of a perpendicular line in various situations.
Warm-Up Review Time!!!
Eyes up FrontMouths ClosedEars Listening
IWBAT demonstrate several ways it is important to solve for y
Warm Up Check
Learning Target:
IWBAT write the equation of a perpendicular line in various situations.
1. What is the slope of the line -5x – 2y = 22?
2. Solve for y3x + y = 12
Turn to Page 3
Slopes of Perpendicular Lines
Slopes of ____________ lines
are ___________________!
Find the slope of each line:
Slope (m) of line A: _________
Slope (m) of line B: _________
Slope (m) of line C: _________
A B
CWhat do you notice about the slopes of A and B?
________________________________
________________________________
3/23/2-2/3
The slopes are the same
parallel the same
What do you notice about the slopes of B and C?
__________________________________________________________________
Slopes of __________________ lines
are _____________________
_____________________!!
OPPOSITE – change the
___________
RECIPROCAL - ___________!
_____ AND _____
_____ AND _____
EXAMPLES: What’s an opposite reciprocal?
The slopes different; opposite; reverse, upside down; flipped
perpendicularopposite
reciprocals
sign
flip it
3 -1/3
-5/7 7/5
Use the following clues to write an equation for Line A.Line A has a y-intercept of -1.Line A is perpendicular to the line y = 4x + 3
Equation for Line A: _____________________
EX 1
y = -1/4x - 1
Line K is perpendicular to the line y = -5x + 4.Line K contains the point (3,3).
EX 2
Slope (m) : ________________
Y-intercept (b) : ____________
Equation of line:
_______________________
1/5
2.4
y = 1/5x + 2.4
Write the equation of the line that goes through (4, -5) and is perpendicular to the line y = 4x + 4.
1 What is the slope of your new line?
2 Find the y-intercept (Plug into y = mx + b)
EX 3
-1/4
Now put it all together….
The equation of the line is: _______________________y = -1/4x - 4
Write the equation of the line that goes through (0, 4) and is perpendicular to the line y = 3x.
The equation of the line is: _______________________y = -1/3 + 4
You try it!
For the Rest of Class work on the problems on Page 5
and 6.
If you get done early, start your homework – Page 9