Review on Translation and Reflection

Reflections and Translations Review

by Mr. Antipolo

​+ Right +Up

​-Left -Down

Multiple Choice

What does a translation do to a figure on the coordinate plane?

• Rotates it

• Flips it

• Shrinks it

• Slides it

Multiple Choice

What does this transformation say to do? (x, y) -----> (x, y +4) 

• slide down 4

• slide up 4

• slide right 4

• slide left 4

Multiple Choice

What is the algebraic notation of a figure is Translated 2 units right and 5 units up?

• (x, y) --> (x - 2, y - 5)

• (x, y) --> (x + 2, y + 5)

• (x, y) --> (x + 5, y - 2)

• (x, y) --> (5x, 2y)

Multiple Choice

Translate the pink shape to the blue shape...

• 5 Right

  2 Down

• 5 Left

  2 Up

• 3 Right

  1 Down

• 3 Left

  1 Up

Multiple Choice

Determine how to translate triangle ABC to triangle A'B'C'.

• (x - 9 , y + 2)

• (x + 2, y - 9)

• (x - 2, y + 5)

• (x - 2, y + 9)

Multiple Choice

Identify line of reflection

• x axis

• y axis

• y = x

• y = -x

Multiple Choice

Identify line of reflection

• y axis

• y = x

• y = -x

• x axis

Multiple Choice

Identify line of reflection

• x axis

• y axis

• x = -6

• y = -6

Multiple Choice

Identify line of reflection

• y = x

• y = -3

• y axis

• x axis

Multiple Choice

Identify line of reflection

• y axis

• x = -4

• y = -4

• y = -x

Multiple Choice

Identify line of reflection

• x axis

• y axis

• y = x

• y = -x

Multiple Choice

Identify the line of reflection.

• x axis

• x = -3

• y = -x

• y = -3

Multiple Choice

If the dotted figure is the image, the original figure was reflected over the ...

• x-axis
• y-axis

Multiple Choice

Is the picture being reflected in the y-axis or x-axis?

• y-axis

• x-axis

Multiple Choice

What is a reflection?

• When you turn an object around a point.

• When you slide an object form one place to another.

• When you flip or mirror an object across a line.

• When you resize an object.

Translations vs Reflections

Multiple Choice

What does a translation do to an image?

• Turns it 90* clockwise

• Mirrors it

• Shrinks it

• Slides it

Multiple Choice

When Translating an image, if you move a figure to the right , you will have _____ a number.

• x +

• x -

• y +

• y -

Multiple Choice

When Translating an image, if you move a figure to the left, you will have _____ a number.

• x +

• x -

• y +

• y -

Multiple Choice

What does this transformation say to do?

(x, y) -----> (x + 3, y)

• slide down 3

• slide up 3

• slide right 3

• slide left 3

Multiple Choice

What does this transformation say to do?

(x, y) -----> (x - 5, y)

• slide down 5

• slide up 5

• slide right 5

• slide left 5

Multiple Choice

When Translating an image, if you move a figure up, you will have _____ a number.

• y +

• y-

• x +

• x -

Multiple Choice

When Translating an image, if you move a figure down, you will have _____ a number.

• y +

• y-

• x +

• x -

Multiple Choice

What does this transformation say to do?

(x, y) -----> (x, y +4)

• slide down 4

• slide up 4

• slide right 4

• slide left 4

Multiple Choice

What does this transformation say to do?

(x, y) -----> (x, y - 2)

• slide down 2

• slide up 2

• slide right 2

• slide left 2

Multiple Choice

What is the algebraic representation of translating a figure 3 units left and 5 units down?

• (x+5, y-3)

• (x-5, y+3)

• (x-3, y+5)

• (x-3, y-5)

Multiple Choice

What transformation is happening?

(x, y) ----> (x + 2, y - 3)

• slide up 2, left 3

• slide right 2, up 3

• slide right 2, down 3

• slide left 3, right 2

Multiple Choice

What is a reflection?

• When you turn an object around a point.

• When you slide an object form one place to another.

• When you flip or mirror an object across a line.

• When you resize an object.

Multiple Choice

Which axis is the vertical (up-down) one?

• x-axis

• y-axis

Multiple Choice

What axis is the triangle being reflected over?

• X-axis

• Y-axis

Multiple Choice

Which axis is the horizontal (left-right) one?

• x-axis

• y-axis

Multiple Choice

Reflecting over the y-axis changes the ____-_____________.

• x-axis

• x-coordinate

• y-coordinate

• y-axis

Multiple Choice

Reflect Point C over the y-axis:

• (-3, 2)

• (3,2)

• (-2,3)

• (3,0)

Multiple Choice

Reflecting over the x-axis changes the ____-_____________.

• x-axis

• x-coordinate

• y-coordinate

• y-axis

Multiple Choice

Find K' if the figure is reflected across the x-axis

• (4, 1))

• (-1, -4)

• (1, -4)

• (1, 4)

Multiple Choice

Identify the transformation.

• Reflection across y-axis

• 90 Rotation counter clockwise

• Translation 5 units left, 1 unit up.

• Translation 5 units right, 1 unit down

Multiple Choice

The image shows what type of transformation

• Rotation

• Translation

• Reflection

Multiple Choice

Is the picture being reflected in the y-axis or x-axis?

• y-axis

• x-axis

Multiple Choice

Given C(2, 9), under which reflection is C'(-2, 9)?

• reflected in the x-axis

• reflected in the y-axis

• reflected in the line x = 2

• reflected in the line y = x

Multiple Choice

Which sequence of transformations maps the red parallelogram to the green parallelogram?

• A translation, then a reflection.

• A rotation, then a translation.

• A reflection, then a translation.

• A reflection, then a rotation.

Multiple Choice

Which is the pre-image (first one)?

• Purple

• Blue

Multiple Choice

Translated figures are always __________________.

• Congruent

• Bigger

• Smaller

• Rotated

Multiple Choice

Shapes that are identical in size, shape and measure are...

• Congruent 

• Image 

• Angles 

• Vertices 

Multiple Choice

Isometric means that a transformation does not change size or shape.

• True

• False

Multiple Choice

What is the image of (x, y) after a translation of 3 units right and 7 units down?

• (x + 3, y - 7)

• (x + 3, y + 7)

• (x - 3, y - 7)

• (x - 3, y + 7)

Multiple Choice

What are the coordinates of P', the image of P(-4, 0) under the translation (x - 3, y + 6)?

• (-7, 6)

• (7, -6)

• (1, 6)

• (2, -3)

Poll

How do you feel about translations and reflections now?