Graphical Inequalities Things to remember: Use a table of values if you need to help you draw the linear graphs. Use a solid line for or and a dotted line for > or <. ≥ ≤, Test a coordinate ((0, 0) is easiest) to work out which side of the line to shade. Questions: 1. (a) Solve the inequality 5e + 3 > e + 12 ........................................................... (2) (b) On the grid, shade the region defined by the inequality x + y > 1 (2) (Total for Question is 4 marks) The lines = 2 and + = 10 are drawn on the grid. 2. y x x y – On the grid, mark with a cross (×) each of the points with integer coordinates that are in the region defined by y > x 2 – x + y < 10 x > 3 (Total for Question is 3 marks)
Graphical Inequalities Things to remember: Use a table of values if you need to help you draw the linear graphs. Use a solid line for ≥ or ≤, and a dotted line for > or <. Test a coordinate ((0, 0) is easiest) to work out which side of the line to shade. Questions: 1. (a) Solve the inequality 5e + 3 > e + 12 ........................................................... (2) (b) On the grid, shade the region defined by the inequality x + y > 1 (2) (Total for Question is 4 marks) 2. The lines y = x – 2 and x + y = 10 are drawn on the grid. On the grid, mark with a cross (×) each of the points with integer coordinates that are in the region defined by y > x – 2 x + y < 10 x > 3 (Total for Question is 3 marks)
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