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Edexcel IGCSE Math A 2.8 inequalities

Use this inequalities page to solve linear or quadratic inequalities, represent answers on number lines and write inequalities for graph regions.

Syllabus
First assessment 2018
Course
Math A 4MA1
Level
Foundation

Exam points

  • Solve linear or quadratic inequalities and keep the inequality sign correct.
  • Represent a solution such as w < 1 on a number line with the correct endpoint.
  • Write inequalities that define a shaded region bounded by straight lines.

Covered syllabus points

2.8.A Inequality symbols and compound inequalities2.8.B Open and closed intervals2.8.C Solving linear inequalities2.8.D Linear inequalities on Cartesian graphs2.8.E Regions defined by linear inequalities

2.8 Inequalities question 1

[Maximum number: 3]

The table gives information about the costs of sending parcels of different weights.

Table for Question 2.8 Inequalities question 1 — Edexcel IGCSE Math A Foundation

Peony has one parcel of weight 1.3 kg and another parcel of weight 8 kg to send to two different places.

Work out the greatest possible weight of the third parcel.
kg

2.8 Inequalities question 2

[Maximum number: 4]

Question (a)

(a)

Write down the inequality shown on the number line

Figure for Question (a) — Edexcel IGCSE Math A Foundation
[ 1 ]

Question (b)

(b)

Solve the inequality 7 w+6>12 w+14

[ 3 ]
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