P4 MONDAY TEST PREP: TRANSFORMATIONS

Which of the following describes the sequence of transformations shown?

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

• Rotate 90 degrees cw 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 ccw about the origin.

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

• ½
• ¼
• 4
• 2

A reflection

• Has a central point that stays fixed and everything else moves around that point

• a transformation that changes the size of a figure

• a transformation in which the preimage is flipped across a line

• a function that moves an object a certain distance. The object is not altered in any other way.

Which of the following shows a dilation?

• 
• 
• 
• 

An office supply store sells index cards in two different sizes. The large size is an enlargement of the small size. Both sizes are shown. Find the scale factor of the enlargement.

• 2
• 3
• 4
• 5

Translate the point A (-3, 4) right 5 and up 1

• (-2, 9)
• (-8, 5)
• (8, 3)
• (2, 5)

Reflect the point (-1, 2) over the y-axis.

• (-1, -2)
• (1, 2)
• (1, -2)
• (1, 4)

Describe the transformation shown in the graph.

• Reflect over x-axis
• Reflect over y-axis
• Rotate 270 degrees CCW
• Rotate 90 degress CCW

How is trapezoid ABCD translated to trapezoid A'B'C'D'?

• (x + 5, y - 5) 5 units down and 5 units to the right
• (x + 1, y - 5) 5 units down and 1 to the right
• (x + 5, y - 8) 8 units down and 5 units to the right
• (x + 4, y - 5) 5 units down and 4 units to the right

Definition: The figure before a transformation has occurred. 

• Pre-image
• Image
• Translation
• Reflection