REFLECTIONS Pg 734 of Textbook. REFLECTIONS Reflection: A transformation that _ a figure across a line called the _________________.

Slides:

Advertisements

Similar presentations

Dilations: (Stretching/Shrinking)  Dilations use a scale factor to reduce or enlarge shapes.  Every dilation has a center and a scale factor. Most of.

Advertisements

(7.7) Geometry and spatial reasoning The student uses coordinate geometry to describe location on a plane. The student is expected to: (B) graph reflections.

EQ: How can you investigate transformations? Lesson 13-5b Transformations pp Vocabulary to watch out for this lesson: Transformation Translation.

Lesson 2: Reflecting Shapes. When Doing Reflections… You use a line of reflection No matter where the shape is in relation to the line of reflection,

Transformations on the Coordinate Plane

Reflections. What will we accomplish in today’s lesson? Given a pre-image and its reflected image, determine the line of reflection. Given a pre-image.

A transformation is a change in the position, size, or

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

10-9 Reflections (page ) Indicators  G7-Identify the line & rotation symmetries of 2-d figures to solve problems. G8-Perform reflections of 2-d.

9-5 Transformations in the Coordinate Plane Learn to use translations, reflections, and rotations to change the positions of figures in the coordinate.

Transformation a change of position, shape or size of a figure Three types of transformation A slide called a translation A flip, called a reflection The.

Coordinate Algebra Unit 5, Lesson 2 Reflections in the Coordinate Plane.

Reflecting over the x-axis and y-axis

Properties of Reflections. Warm up Triangle ABC has vertices A(1, 1), B(3, 1), and C(2, 4). Describe how each reflection changes the coordinates of the.

Lesson 9.9 Line Reflections and Symmetry. Line of Symmetry Divides the figure in two congruent halves.

Reflections or Flips.

Lesson 11.4 Translations and Reflections

Rigid Motion in a Plane Reflection

9.1 Reflections By: The Tortellini's Draga, Kristin, Saahithi.

1.5 Reflections and Line Symmetry Warm Up. 1.5 Reflections and Line Symmetry Objectives Identify and draw reflections.

Getting started.

In mathematics, a transformation

Algebraic Representations of Transformations Day 2

 Students will be able… › Identify reflections, rotations, and translations. › Graph transformations in the coordinate plane.

Holt Geometry 12-1 Reflections A transformation is a change in the position, size, or shape of a figure. The original figure is called the preimage. The.

Warm Up Translate the following coordinates: Translate the following coordinates: (-3, -2)(-2, 2)(0,4)  (x + 2, y – 4)(-3, -2)(-2, 2)(0,4)  (x + 2, y.

An operation that moves or changes a geometric figure (a preimage) in some way to produce a new figure (an image). Congruence transformations – Changes.

Perform Congruence Transformations. A __________________ is an operation that moves or changes a geometric figure to produce a new figure called an __________.

Holt McDougal Geometry 1-7 Transformations in the Coordinate Plane Identify reflections, rotations, and translations. Graph transformations in the coordinate.

Transformations Reflection An object can be reflected in a mirror line or axis of reflection to produce an image of the object. For example, Each point.

9.1 – Translate Figures and Use Vectors

4-4 Geometric Transformations with Matrices Objectives: to represent translations and dilations w/ matrices : to represent reflections and rotations with.

Objective: Students will be able to represent translations, dilations, reflections and rotations with matrices.

Holt Geometry 12-1 Reflections 12-1 Reflections Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson Quiz Lesson Quiz.

Translations Lesson 6-1.

9-2 Reflections Objective: To find reflection images of figures.

1.4 Rigid Motion in a plane Warm Up

1-7 transformations on the coordinate plane

 2.3: Reflections. What is a Reflection?  Reflection or flip is a transformation in which a figure is reflected on a line called the line of reflection.

9.2 Properties of Reflections

Perform Congruence Transformations. Transformations: when you move or change a geometric figure in some way to produce a new figure. Image is what the.

Types of Rigid Motion Translation Rotation Reflection Objective - To describe and interpret translations and reflections in the coordinate plane.

Translations 12-2 Warm Up Lesson Presentation Lesson Quiz

The Leaner Twins LeftyRighty Graphing Transformations 2 Reflection - flipping a shape across a line so it faces the opposite direction.

Translations and Reflections.  Move the figure  Same shape and size (Congruent) (x ± n, y ± m)  x + n, move every point n units to the right  x –

Unit 5 Transformations in the Coordinate Plane. Translations.

Holt Geometry 1-7 Transformations in the Coordinate Plane Warm Up 1. Draw a line that divides a right angle in half. 2. Draw three different squares with.

2-4 Modeling Motion with Matrices Pre Calc A. Vocabulary Transformations Translation Reflection Rotations Dilations.

Translations, Reflections, and Rotations. Vocabulary Transformation- changes the position or orientation of a figure. Image- the resulting figure after.

Graphing & Describing “Reflections”. We have learned that there are 4 types of transformations: 1)Translations 2)Reflections 3)Rotations 4)Dilations The.

Section 1.3. Warm Up 1. Draw a line that divides a right angle in half. 2. Draw three different squares with (3, 2) as one vertex.

Translations Advanced Geometry Rigid Transformations Lesson 1.

Bellwork 1)Describe what this transformation will do to a figure: (x, y)  (x + 6, y – 7) 2)Describe what this transformation will do to a figure: (x,

Transformations: Translations & Reflections

I can draw reflections in the coordinate plane.

9.4 : Compositions of Transformations

11.3 Reflections 1/11/17.

Do-Now Find the value of x. A = 20 A = 35 x 4 x – 2 2x 3x A =

3B Reflections 9-2 in textbook

Objectives Identify reflections, rotations, and translations.

Warm Up Find the coordinates of the image of ∆ABC with vertices A(3, 4), B(–1, 4), and C(5, –2), after each reflection. 1. across the x-axis 2. across.

Warm up Reflect the figure ABCD across the line y=x. List the new coordinates of the points A’B’C’D’.

Do Now – 2nd Block.

A movement of a figure in a plane.

Exploring the Effect of Changing Dimensions on Area & Perimeter

9.1: Reflections.

EXAMPLE 1 Translate a figure in the coordinate plane

Geometry PreAP, Revised ©2013 1–7 and 12–1: Transformations

Objective Identify and draw reflections..

11.2 translations Essential Question: What does it mean to translate a shape?

Presentation transcript:

REFLECTIONS Pg 734 of Textbook

REFLECTIONS

Reflection: A transformation that ___________ a figure across a line called the ___________________________. Each point and its image are the ___________________from the ____________________________. The image has the ____________________ and ______________________ as the preimage; Therefore, the preimage and image are _____________________. NOTE: In 8 th grade, you are only required to reflect across the __________________ and _________________. You can use COORDINATE NOTATION to describe reflections across the x-axis and y-axis. Reflect across the x-axisReflect across the y-axisRULES FOR REFLECTION flipsline of reflection same distance line of reflection same sizesame shape congruent x-axisy-axis

1. Draw parallelogram ABCD with vertices at A (-3, 3), B (2, 3), C (4, 1), and D (-1, 1). Then find the coordinates of the vertices of the image after a reflection across the x-axis and draw the image. Original Image A (-3, 3)  B (2, 3)  C (4, 1)  D (-1, 1)  #14 PA8 Sem2 Practice Exam B Triangle EFG has vertices Find the coordinates of the image of point E after a reflection across the y-axis. A. (2, 5) B. (-2, 5) C. (-5, 2) D. (-5, -2) #4 Explorations Workbook Pg 203 Graph a reflection of Quadrilateral MNPQ across the y-axis.