Module 4 Exam--Transformations

When you translate, (x-4 ,y) will move _____.

• 4 units right

• 4 units left

• 4 units up

• 4 units down

Write a rule for the translation.

•  (x -1, y  + 2)
•  (x -2, y  + 1)
•  (x +2, y  - 1)
• (x +1, y  -  2)

Which of the following describes the sequence of transformations shown?

• Reflect across the x-axis and then rotate -90 degrees around the origin
• Rotate -90 degrees 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 about the origin.

A type of transformation where a figure is “flipped” over a line of symmetry. A reflection produces a mirror image of a figure.

• rotation
• translation
• dilation
• reflection

Which similarity transformation maps ABCD to A'B'C'D'?

• A reflection in the x-axis followed by a dilation with scale factor 3.

Which similarity transformation maps WXYZ to W'X'Y'Z'?

• Reflection over the x-axis, followed by a dilation with a scale factor of 2 

•  Reflection over the y-axis, followed by a dilation with a scale factor of 2 

Choose the statement that accurately describes the relationship between ABCD and EFGH.

• ABCD and EFGH are congruent, but not similar.

• ABCD and EFGH are similar, but not congruent.

• ABCD and EFGH are both congruent and similar.

• ABCD and EFGH are neither congruent, nor similar.

Triangle ABC with Vertices A(-1, 2), B(-1, -2), and C(-4, -2) is dilated by a scale factor of 2 to form triangle A’B’C’.

What is the length in units, of side A’B’?

• 4

• 2

• 8

• 7

Are the following similar? Why or why not?

• Yes, they are both trapezoids

• No, they have different sizes

• No, the ratios of the corresponding sides are not equal.

• Yes, they have the same base and 4 angles