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ZIMSEC O-Level Additional Mathematics

6.1.7.1The quadratic function and its maximum or minimum value

The quadratic function and its maximum or minimum value in ZIMSEC O-Level Additional Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic23 practice questions1 lesson

Learning objectives

What the syllabus expects you to be able to do.

  1. 6.1.7.1.1Form 3: recognise a quadratic function as a two-to-one mapping.
  2. 6.1.7.1.2Form 3: find its maximum or minimum value from the graph or by completing the square.

Lessons

  • Completing the square, maximum and minimum values

    35 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

The quadratic function and its maximum or minimum value: sample question

1 mark

What is the minimum value of (x+4)2−9(x + 4)^2 - 9?

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