Geometric Transformations Unit Test Review

Polygon LMNOP was transformed to create polygon L'M'N'O'P'. Which angle corresponds to N?

a. <N'

Quinton tried to transform triangle FGH according to the rule (x, y) → (-y, x). Which best describes his attempt?

a. Correct. He transformed the triangle according to the rule (x, y) → (-y, x).

Square PQRS is transformed as shown on the graph. Which rule describes the transformation?

a. R0, 90°

Triangle XYZ with vertices X(0, 0), Y(0, -2), and Z(-2, -2) is rotated to create the image triangle X'(0, 0),Y'(2, 0), and Z'(2, -2). Which rules could describe the rotation? Select two options

a. R0, 90° d. (x, y) → (-y, x)

A square on a coordinate plane is translated 9 units down and 1 unit to the right. Which function rule describes the translation?

a. T1, -9(x, y)

Which diagram has all the correct lines of reflectional symmetry for the rectangle?

b.

A regular decagon has 10 sides. How many reflectional symmetries does a regular decagon have?

b. 10

Which statement describes the order of rotational symmetry for an isosceles triangle?

b. An isosceles triangle has an order 1 rotational symmetry because it does not have all congruent angles.

Triangle ABC was transformed to create triangle DEF. Which statement is true regarding the side in the image that corresponds to ?

b. ED corresponds to BA because they are in the same position.

Triangle EFG has vertices E(-3, 4), F(-5, -1), and G(1, 1). The triangle is translated so that the coordinates of the image are E'(-1, 0), F'(-3, -5), and G'(3, -3). Which rule was used to translate the image?

b. T2, -4(x, y)

Triangle QRS is transformed as shown on the graph. Which rule describes the transformation?

c. R0, 270°

A transformation of ΔDEF results in ΔD'E'F'. Which transformation maps the pre-image to the image?

c. The transformation is a rotation.

Triangle DEF was tranformed to create triangle D'E'F'. Complete the statement about the transformation. Point F' corresponds to

c. point F.

What is the minimum angle of rotational symmetry for the quadrilateral shown below?

d. 360°

A point has the coordinates (m, 0) and m ≠ 0. Which reflection of the point will produce an image located at (0, -m)?

d. a reflection of the point across the line y = -x