Transformations Test

What is the rule for the following reflection?

• Reflection across y = −2

• Reflection across x = −2

• Reflection across x = 2

• Reflection across y = 2

How many degrees was the figure rotated?

• 90 degrees counterclockwise 

• 180 degrees

• 90 degrees clockwise

Describe the translation of Point A (3, -8) to A'(-4, -5).

• (x - 4, y - 5)

• (x + 7, y - 3)

• (x - 7, y + 3)

• (x - 3, y + 7)

The coordinates of triangle JRB are ,J(1, -2) , R(-3, 6) and B(4, 5) . What are the coordinates of the vertices of its image after the

transformation T_{(2, -1)} then r_y-axis ?

• (3, 1), (-1, -7), (6, -6)

• (3, -3), (-1, 5), (6, 4)

• (-3, -3), (1, 5), (-6, 4)

• (-1, -2), (3, 6), (-4, 5)

Which would be the correct notation for the composition of transformations from blue to red to green?

• <-4,0> then R_{y axis}

• R_{y axis} then <0, -4>

• <0, -4> then R_{y axis}

• R_{x axis} then R_{y axis}

Which sequence of transformations is used to transform the original image to the final image? Original: ABCD Final: A" B" C"D"

• Reflect over the x-axis and then rotate clockwise 90 around the origin.

• Rotate counterclockwise 90 around the origin and then translate 8 units left.

• Reflect over the y-axis and then rotate counterclockwise 90 around the origin.

• Rotate clockwise 90 around the origin and then translate 8 units left.

Tags

8.G.2

Which transformations could be used to transform from the original image to the final image?

• Translate 7 units up.

• Translate 8 units right.

• Rotate 90 counterclockwise around the origin

• Rotate 180 around the origin.

• Translate 5 units down.

Tags

8.G.2

What is the rule for the dilation pictured?

• (x, y) → (½x, ½y)

• (x, y) → (x + 2, y + 2)

• (x, y) → (2x, 2y)

• (x, y) → (2x, 3y)

Tags

8.G.4

What are the series of rigid motions that would map ∆ABC onto ∆A''B''C''?

• a reflection followed by a rotation

• a reflection followed by a translation

• a translation followed by a rotation

• a translation followed by a reflection

Tags

8.G.2

If you were to rotate ABCD 90° counterclockwise about the origin, what would the coordinate of A' be?

Tags

8.G.2