Graphs of Inequalities
Maths: Edexcel IGCSE Higher, topic 2.6.2
Inequalities on a Graph
Represent these inequalities on the graph: x < 3, y ≤ x + 1, y > -2x + 2
Draw x = 3 as a dashed line
- For < or > symbols use a dashed line.
Shade in region which doesn't satisfy the inequality
- x needs to be less than 3
Draw y = x + 1 as a solid line
- For ≤ or ≥ symbols use a solid line.
Shade in region which doesn't satisfy the inequality
Draw y > -2x + 2 as a dashed line
Shade in region which doesn't satisfy the inequality
The region R satisfies all our inequalities
Test yourself on Graphs of Inequalities
What area of the graph is NOT shaded in?
What area of the graph is NOT shaded in?
What area of the graph is NOT shaded in?
What area of the graph is NOT shaded in?
What area of the graph is NOT shaded in?