Transformations Quiz

What is a dilation in geometry?

• A dilation in geometry is a transformation that changes the shape of a figure without changing its size.

• A dilation in geometry is a transformation that rotates a figure without changing its size.

• A dilation in geometry is a transformation that changes the size of a figure without changing its shape.

• A dilation in geometry is a transformation that reflects a figure without changing its size.

Which transformation preserves the shape and size of an object?

• translation

• reflection

• scaling

• rotation

Identify the transformation from ABCD to A'B'C'D'.

• Translation

• Reflection across the x-axis

• Reflection across the y-axis

• 90^o counter clockwise rotation

How is Quadrilateral EFGH translated to E'F'G'H'?

How is the blue triangle rotated to the red triangle?

• 90 clockwise

• 90 counterclockwise

• 180 clockwise

• 180 counterclockwise

What is the algebraic notation of a figure is Translated 6 units right and 5 units up?

• (x, y) --> (x - 6, y + 5)
• (x, y) --> (x + 6, y + 5)
• (x, y) --> (x + 5, y - 6)
• (x, y) --> (6x, 5y)

When a dilation has a scale factor greater than one, the dilation is an enlargement.

• True
• False

State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor of 2.

• B' (2 , 4.5)

• B' (-8 ,-18)

• B' (8 ,18)

• B' (9 ,4)

What scale factor was used to produce the image?

• 2
• -2
• ¹/₂
• 1

A transformation is applied to a figure to create a new figure. Which transformation does NOT preserve congruency?

• Translation

• Reflection

• Rotation

• Dilation