Ch 4 Topic Test Review

Identify the transformation

• Translation

• Reflection

• Rotation

• Dilation

Identify the transformation

• Translation

• Reflection

• Rotation

• Dilation

Identify the transformation

• Translation

• Reflection

• Rotation

• Dilation

Identify the transformation

• Translation

• Reflection

• Rotation

• Dilation

Consider the point A at (−3, 5).

a.     Find the coordinates of A′, the image of A after the transformation:

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

What type of transformation is

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

• 90 degree rotation

• 180 degree rotation

• 270 degree rotation

• No transformation

A (3,-5)

Find the coordinates of A', after the transformation: (x,y) -----> (x-2, y+4)

• A'(5,-1)

• A'(5,-9)

• A'(-1,1)

• A'(1,-1)

  What term describes a transformation that does not change a figure’s size or shape?

• Similarity

• Rigid Motion

• Collinearity

• Symmetry

Given point A is located at (1, 3).  What is the final image of A after this series of transformations?

• - Reflect A across the y-axis.

          - Translate the image such that

              (𝑥, 𝑦)→(𝑥 − 4, 𝑦 + 2).

• (–1, –3)

• (–3, 5)

• (-3,-1)

• (-5,5)

A triangle with vertices (−3, 1), (1, 5), and (4, 1) is reflected across the x-axis. What are the vertices of the image?

              (𝑥, 𝑦)→(𝑥, -𝑦)

• (-3,1)

  (1,5)

  (4,1)

• (3,1)

  (-1,5)

  (-4,1)

• (3,-1)

  (-1,-5)

  (-4,-1)

• (-3,-1)

  (1,-5)

  (4,-1)