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1.5.5 Linear and quadratic inequalities

Does x=3x=3x=3 satisfy x≥3x\ge 3x≥3?

A

Multiplying or dividing an inequality by a positive quantity leaves its direction unchanged; using a negative quantity reverses its direction.

B

x≤14x\le14x≤14

C

Yes - ≥\ge≥ includes the boundary value.

D

The symbol ≤\le≤ makes the boundary inclusive.

1.5.5 Linear and quadratic inequalities Flashcards

  1. A Level
  2. /Maths
  3. /1.5.5 Linear and quadratic inequalities

Flashcards for AQA A Level Maths 1.5.5 Linear and quadratic inequalities, covering the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3. 26 cards, matched to the AQA A Level Maths (7357) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.