9/4 5B Ch19

A solid line is drawn if the inequality sign is

• ‘≥’ or ‘≤’

• ‘>’ or ‘<’

A dotted line is drawn if the inequality sign is

• ‘≥’ or ‘≤’

• ‘>’ or ‘<’

shade the solution region of the following inequality.

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• 

write down the inequality whose solution are represented by the shaded region.

• 2x-y≥1

• 2x-y≤1

• 2x-y>1

• 2x-y<1

• 2x-y=1

shade the solution region of the system of inequalities

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• 
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