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Graphing Linear Inequalities

AIM: SWBAT graph a system of linear
inequalities on the coordinate plane

DO NOW:
Find the slope & y-intercept:

HW:
P. 434#8, 9, 10,12
Assessment Packet DUE MONDAY!!!
EXAM MONDAY!!!

10.8 GRAPHING LINEAR INEQUALITIES

Example:

You will graph these just like lines :
- Put it in STANDARD FORM
- Find the SLOPE and Y -INT.
- Use the y-int. as 1st point and move to the next
- points using the slope

What’s different about them ?

- If inequality has < , > }
- If inequality has < , > }


- SHADING (just like regular inequalities:

A) Pick a TEST POINT on either side of
the line (0,0) is the best when available

B) Plug it into the inequality to determine if
it is a solution or not

If yes, you shade IN THE DIRECTION
OF THE TEST POINT

If no, you shade IN THE OPPOSITE
DIRECTION OF THE TEST POINT
The solution , labeled as “S” is where the 2 shadings
overlap!!

Ex:

Ex:

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