Transformations

What type of transformation is shown in the picture?

• Translation

• Reflection

• Rotation

• Dilation

Which axis is the triangle being reflected over?

• y-axis

• x- axis

Which axis is the triangle being reflected over?

• y-axis

• x-axis

A turn is also called a ___________.

• Translation
• Reflection
• Rotation
• Transformation

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

Point (-5,2) is reflected over the y axis.  Where is the new point located?

• (5,2)
• (-5,-2)
• (-5,2)
• (5,-2)

Which rule would result in a translation of 2 units left and 3 units up?

• (x, y) → (2x, 3y)
• (x, y) → (x - 2, y + 3)
• (x, y) → (-x, -y)
• (x, y) → (x + 2, y - 3)

Given the point Y at (5, 2), where would the image be after the following translation: (x + 2, y - 7)?

• (7, 7)

• (3, 9)

• (4, -5)

• (7, -5)

Reflect the point (2, -4) over the y-axis.

• (-4, 2)
• (-2, 4)
• (-2, -4)
• (2, 4)

When you reflect a point over the y-axis, the ____________ changes.

• x-coordinate

• y-coordinate