TRANSFORMATIONS QUIZ

Which of the following letters has BOTH vertical and horizontal line symmetry?

• X

• E

• A

• T

Find the image of (3,-2) under the Dilation of D₂

Hint! Multiply (x,y) by the scale factor of 2!

• (6,4)

• (6,-4)

• (-6,-4)

• (5, 0)

The coordinates of the image P(3,-4) under a reflection in the x-axis are...

Hint! When you reflect over the X-AXIS your x-coordinate stays the same, but the Y-COORDINATE changes!

• P'(-3,-4)

• P'(3,4)

• P'(-3,4)

If the point (5,-1) is reflected in the Y-AXIS, the coordinated of its image would be:

Hint! When reflecting over the Y-AXIS: keep y and change the X-COORDINATE!

• (5,1)

• (-1, -5)

• (-5, -1)

• (1,5)

• 
• 
• 
• 

What type of transformation is shown in the diagram?

• dilation

• translation

• reflection over the origin

• reflection of the x-axis

Which transformation is similar, but NOT congruent?

*shape is the same, but the SIZE changes!

• translation

• reflection

• rotation

• dilation

If point S' (6,3) is the image of point S (2,1) under a dilation, with respect to the origin, what is the constant of the dilation (the scale factor)?

Hint! Think... how did it go from S (2,1) to S' (6,3)-- what was (2,1,) multiplied by?

• 6

• 3

• 1

• 2

What point may be the image of Point A after a line reflection in the x-axis?

• C

• D

• E

• B

Hint! SIMILAR but NOT CONGRUENT! Size changed!

• translation

• reflection

• dilation

• rotation