Linear Inequations
Define an inequality and understand its classification
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Two real numbers or two algebraic expressions related by the symbols ‘<’, ‘>’, ‘≤’ or ‘≥’ form an inequality.
- For example: 6 < 26, 3 < z + 1 ≤ 22, 27 ≥ s ≥ 16, p + t > 100
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Inequalities can be classified as
- Numerical inequality: Inequalities that involve numbers only are classified as numerical inequalities. For example: 87 < 117, 19 > 17 > 8 etc.
- Literal inequality: Inequalities that involve a variable on one side and a number on the other side are classified as literal inequalities. For example: a < 6, 18 > k, b ≥ − 27, 21 ≤ m, etc.
- Double inequality: Inequalities in which the variable or the numbers lie in a certain interval are known as double inequalities. For …
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