Geometric Compositions

Under what composition of transformations does triangle ABC map onto triangle A''B''C''

• Reflection over x-axis, then Rotation of 90 Degrees

• Rotation of -90 Degrees, then Reflection over y-axis

• Reflection over y-axis, then Rotation of -90 Degrees

• Rotation of 90 Degrees, then Reflection over x-axis

Which answer shows a reflection across the y-axis?

• a

• b

• c

• d

Which transformation pivots a pre-image around the origin either clockwise or counter clockwise?

• Translation

• Rotation

• Reflection

• Dilation

If the blue is the pre-image and the red is the image, is this an enlargement or a reduction?

• enlargement

• reduction

What is the sequence of transformations?

• Reflect over the y then reflect over the x

• Reflect over the x then reflect over the y

• Translate 4 units then rotate 90˚

• Rotate 90˚ then reflect over the x

Describe the transformations that map ABC onto A"B"C"

• translate 5 up and 1 left then reflect over y

• translate 5 down and 1 left, then reflect over y

• reflect over y=x then translate left 8

• reflect over x then rotate 90 clockwise

Which transformation moves a geometric pre-image right, left, up or down?

• Translation

• Rotation

• Reflection

• Dilation

Which transformation flips an image across either the x or y axis?

• Translation

• Rotation

• Reflection

• Dilation

Select the correct transformation that maps ABDC to A'B'C'D'.

• Rotation 90 CW followed by translation 10 units to the left

• Translation 6 units down followed by rotation 90 CW

• Translation 10 units to the left followed by 90 CW rotation

• Rotation 90 CCW followed by translation 6 units down

Select all the possible transformations that map EFGH to E'F'G'H'.

• Y-axis reflection followed by translation 6 to the right and 3 down

• X-axis reflection  followed by translation 4 to the left

• 180 rotation followed by translation 6 to the right

• 180 rotation followed by y-axis reflection