Translations vs Reflections

Translations vs Reflections

Let's Review

Lets see in you remember the basics.

Multiple Choice

What does a translation do to an image?

• Turns it 90* clockwise

• Mirrors it

• Shrinks it

• Slides it

Multiple Choice

Translate the blue shape to the pink shape...

• 5 Right

  2 Down

• 5 Left

  2 Up

• 3 Right

  1 Down

• 3 Left

  1 Up

Multiple Choice

Translate the blue shape to the green shape...

• 3 Left

  3 Down

• 3 Right

  3 Up

• 2 Right

  3 Up

• 2 Left

  3 Down

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

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

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 - 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

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

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 - 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

What axis is the image reflected over?

• 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)

Poll

How do you feel about translations and reflections now?