Unit 7 Test Review - Transformations

Which is true about rotations?

• They change the figure’s congruence.

• They preserve the orientation of the figure and the orientation of the vertices.

• They preserve the orientation of the figure and keep the shape congruent.

• They change the orientation of the figure

Tags

CCSS.HSG.CO.A.2

What is the only transformation affects a figure’s congruence?

• Translations

• Dilations

• Reflections

• Rotations

Tags

CCSS.HSG.CO.A.2

Which algebraic representation shows point (a, b) being translated 12 units left and 3 units up?

• (a + 12, b - 3)

• (-a - 12, b + 3)

• (a - 12, b + 3)

• (a + 12, b + 3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which algebraic representation shows point (x, y) being rotated 90 degrees clockwise?

• (y, -x)

• (x, -y)

• (x - 90, y - 90)

• (y, x)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which is true about the areas of rectangle ABCD and A’ B’ C’ D’?

• The area of A’ B’ C’ D’ is 3 times the area of ABCD.

• The area of A’ B’ C’ D’ is 1/3 the area of ABCD.

• The area of A’ B’ C’ D’ is 9 times the area of ABCD.

• The area of A’ B’ C’ D’ is 1/9 the area of ABCD.

Tags

CCSS.7.G.A.1

Write an algebraic representation to explain the dilation below.

Tags

CCSS.HSG.CO.A.2

Triangle ABC will be translated with the rule (x + 4, y - 5). Where will point C be after the transformation?

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Write an algebraic representation to explain the translation below.

Tags

CCSS.HSG.CO.A.2

Which algebraic representation shows point (x, y) being reflected across the y-axis?

• (-x, -y)

• (-x, y)

• (x, -y)

• (y, x)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

The point (-6, -2) is reflected across the x-axis. Which ordered pair matches its new location?

• (6, 2)

• (-6, 2)

• (6, -2)

• (2, 6)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5