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Learning objective

Identify, explain, and illustrate the following transformations, which may include combinations: 1. Reflecting a shape across a straight line. 2. Rotating a shape around a center by multiples of 90 degrees. 3. Enlarging a shape from a center using positive, fractional, or negative scale factors. 4. Translating a shape using a vector.

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Cambridge IGCSE MathematicsExtended Transformations and vectorsSupplement content

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Quick explanation

Identify, explain, and illustrate the following transformations, which may include combinations: 1. Reflecting a shape across a straight line. 2. Rotating a shape around a center by multiples of 90 degrees. 3. Enlarging a shape from a center using positive, fractional, or negative scale factors. 4. Translating a shape using a vector

  • This point belongs to Transformations, especially Transformations outcomes.
  • You need to be able to identify, explain, and illustrate the following transformations, which may include combinations: 1. Reflecting a shape across a straight line. 2. Rotating a shape around a center by multiples of 90 degrees. 3. Enlarging a shape from a center using positive, fractional, or negative scale factors. 4. Translating a shape using a vector.
  • The key ideas to know are Describe, Explain, and Sketch.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeExplainSketchShow

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Paper 2 structured question: Transformations

Paper 2Core or Extended Mathematics2 marks

Diagram Description

Triangle ABC and its image after transformation

Triangle ABC is shown on a coordinate grid. The triangle is reflected across the y-axis to form triangle A'B'C'.

PointCoordinates of ABCCoordinates of A'B'C'
A(2,3)(-2,3)
B(4,1)(-4,1)
C(3,5)(-3,5)
  1. a

    Describe the transformation that maps triangle ABC onto triangle A'B'C'.

    Aim for approximately 2 distinct marking points.

    [2]
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