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3.7 Graphing Inequalities In Two Variables. Get y by itself Graph If ≤ or ≥: use solid line If : use dashed line If < or ≤: shade below the line If >

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Presentation on theme: "3.7 Graphing Inequalities In Two Variables. Get y by itself Graph If ≤ or ≥: use solid line If : use dashed line If < or ≤: shade below the line If >"— Presentation transcript:

1 3.7 Graphing Inequalities In Two Variables

2 Get y by itself Graph If ≤ or ≥: use solid line If : use dashed line If < or ≤: shade below the line If > or ≥: shade above the line

3 Ex1) Graph 2x + y ≤ 0 y ≤ -2x y ≤ -2x S

4 Ex2) Graph -2x + 2y > 2 2y > 2x +2 y > x + 1 S

5 Ex 2) -3 < x ≤ 4 x ≤ 4 x > -3 S

6 Ex3) x + y ≤ 4 x – y < 4 y ≤ -x + 4 -y < -x + 4 y ≤ -x + 4 y > x - 4 y ≤ -x + 4 y > x - 4

7 Ex4) x + y ≤ 4 x – y < 4 y ≤ -x + 4 -y < -x + 4 y ≤ -x + 4 y > x - 4 y ≤ -x + 4 y > x - 4 S

8 Ex 5) y < 2x + 1 y > x y ≥ (1/2) x - 3 y < 2x + 1 y > x y ≥ (1/2) x - 3 S


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