Pre-Image and Image Notation

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About This Diagram

This diagram introduces the fundamental terminology for geometric transformations: pre-image (original figure), image (result after transformation), and prime notation (A → A').

Key Terminology

Term	Definition
Pre-Image	The original figure before transformation
Image	The resulting figure after transformation
Prime Notation	A' ("A prime") denotes the image of point A

Correspondence

When triangle ABC is transformed: - A → A' (vertex A maps to A') - B → B' (vertex B maps to B') - C → C' (vertex C maps to C')

Interaction

Click anywhere on the diagram to animate the transformation and see the figure move from pre-image to image.

Learning Objectives

• Remember the terms pre-image and image
• Understand prime notation for transformed points

Bloom's Taxonomy Level

Remembering and Understanding - Terminology introduction.

Iframe Embed Code

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