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REFLECTIONS: Reflections are a flip. The flip is performed over the “line of reflection.” Lines of symmetry are examples of lines of reflection. Reflections are isometric, but do not preserve orientation. Coordinate plane rules: Over the x-axis: (x, y) (x, –y) Over the y-axis: (x, y) (–x, y)
What is the rule for reflecting a shape over the x-axis. a. (x,y) → (−x,−y) b. (x,y) → (y,x) c. (x,y) → (−x,y) d. (x,y) → (x,−y) 20. Point A(9, –4) is reflected over the y-axis. Write the coordinates of Aʹ′. a. (–9, –4) b. (9, –4) c. (9, 4) d. (–9, 4) 21. ΔABChas vertices A(–1, –2), B(–4, –4), and C(–3 ...
reflection across the x-axis reflection across y = − x. reflection across x = −3. reflection across the y-axis reflection across y = x. Create your own worksheets like this one with Infinite Geometry. Free trial available at KutaSoftware.com.
Lesson 1 – 1: Introduction to Transformations and Rotations............3. Lesson 1 – 2: Reflections and Translations......................................9. Lesson 1 – 3: Compositions of Transformations.............................17. Lesson 1 – 4: Mapping a Figure onto Itself.....................................21.
29 Αυγ 2019 · Practice Questions. Previous: Rounding Practice Questions. Next: Equation of a Line Practice Questions. The Corbettmaths Practice Questions on Reflections.
Answers to 9.2 Reflections (Worksheet) (ID: 1) 16) reflection across the y-axis. 19) reflection across y = -1. 22) reflection across x = 1. 25) reflection across x = 1. 28) reflection across the y-axis. 17) reflection across the x-axis. 20) reflection across x = 1. 23) reflection across the y-axis.
Guidance. Read each question carefully before you begin answering it. Donʼt spend too long on one question. Attempt every question. Check your answers seem right. Always show your workings. Revision for this topic. Reflect the shape using the dotted line as a mirror line. 2. Reflect the shape in the mirror line. (2) 3.
