Unit 3 Quiz Transformations

Which transformation is NOT a rigid transformation? (Hint: Which one does not preserve distance?)

• translation with 3 units to the right and 2 units down

• rotation of 270 degrees counterclockwise

• reflection along y=-2

• dilation with a scale factor of 1/3

Answer explanation

Rigid transformations do not get bigger or smaller.

Dilation is a non-rigid transformation

Tags

CCSS.HSG.CO.B.6

The rule for this transformation of ΔABC to ΔA'B'C' is

Answer explanation

If you start from A, how do you get to A' ? You should go left 4 units (x minus 4) and up 2 units (y+2)

Tags

CCSS.HSG.CO.A.2

Graph the image of points A (4,2) and B (-6,-6) after a reflection over the x-axis

Answer explanation

When reflecting over the x axis, the y value changes signs

The pre-image of a transformation is point A(4,3). What are the coordinates of the image after it is reflected over the y-axis?

• (3,4)
• (-4,-3)
• (-4,3)
• (4,-3)

Answer explanation

When reflecting over the y axis, the x changes signs.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Draw the line of reflection for the two shapes

Answer explanation

What does the line look like that is in the middle of the two shapes? You should be able to draw it

Which transformation is shown?

• Translation

• Reflection over the x-axis

• Reflection over the y-axis

• 180^o rotation

Tags

CCSS.HSG.CO.B.6

Which transformation is shown?

• Translation

• Reflection over the x-axis

• Reflection over the y-axis

• 180^o rotation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Triangle A is rotated 270° counterclockwise with the origin as the center of rotation to create a new figure. Which triangle shows the new location?

• A
• B
• C
• D

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which of the following describes the sequence of transformations shown?

• Reflect across the x-axis and then rotate 90 degrees clockwise around the origin

• Rotate 90 degrees clockwise around the origin and then translate down.

• Reflect across the x-axis and then reflect across the y-axis.

• Translate up and then rotate 90 degrees counterclockwise about the origin.

Tags

CCSS.8.G.A.3

Describe a sequence of transformations that maps 
Triangle ABC onto Triangle A"B"C".

• A 180° rotation about the Origin followed by a reflection across the y-axis
• A reflection across the y-axis followed by a reflection across the x-axis and another reflection across the y-axis
• A translation 8 units right and 6 units down followed by a reflection across the y-axis
• A reflection across the x-axis followed by a translation 2 units to the left

Tags

CCSS.8.G.A.3