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Reflections (day 2)

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Last week we finished Unit 2 Lesson 1 and started Lesson 2, which introduced different types of transformations including translations, reflections, rotations, and dilations. The document then focused on reflections, explaining that a reflection flips a figure across a line to create a mirror image. An example showed how to graph the reflection of triangle FGH across the x-axis by multiplying the y-coordinate of each vertex by -1. In conclusion, an IXL assignment was given to practice transformations using translations.

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Last week we finished Unit 2 Lesson 1 and started Lesson 2.
Transformations - Translations (slide) - Reflections (flip) - Rotations (turn) - Dilations (zoom)
Learn to transform plane figures using reflections.
A reflection flips a figure across a line to create a mirror image.
Reflections (day 2)
Reflections (day 2)
Reflections (day 2)
Reflections (day 2)
Reflections (day 2)
Graph the reflection of triangle FGH across the x-axis. Multiply the y-coordinate of each vertex by –1. Rule Image F(–4, –2)F’ (–4, –2  –1) F’(–4, 2) G(1, –3) G’ (1, –3  –1) G’(1, 3) H(–2, –4)H’ (–2, –4  –1) H’(–2, 4) H’ G’ F’ Example: Graphing Reflections on a Coordinate Plane
Reflections (day 2)
Reflections (day 2)
Reflections (day 2)
Reflections (day 2)
Reflections (day 2)
Reflections (day 2)
Reflections (day 2)
Reflections (day 2)
Today we learned to transform plane figures using translations. IXL Skill Q.4 IXL Skill Q.5

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Reflections (day 2)

  • 1. Last week we finished Unit 2 Lesson 1 and started Lesson 2.
  • 2. Transformations - Translations (slide) - Reflections (flip) - Rotations (turn) - Dilations (zoom)
  • 3. Learn to transform plane figures using reflections.
  • 4. A reflection flips a figure across a line to create a mirror image.
  • 10. Graph the reflection of triangle FGH across the x-axis. Multiply the y-coordinate of each vertex by –1. Rule Image F(–4, –2)F’ (–4, –2 ï‚· –1) F’(–4, 2) G(1, –3) G’ (1, –3 ï‚· –1) G’(1, 3) H(–2, –4)H’ (–2, –4 ï‚· –1) H’(–2, 4) H’ G’ F’ Example: Graphing Reflections on a Coordinate Plane
  • 19. Today we learned to transform plane figures using translations. IXL Skill Q.4 IXL Skill Q.5