Unit 3 - Transformations Test Review

A transformation that does not change the size or shape of a geometric figure is known as which of the following?

• an identity transform

• a complete mapping

• a congruent movement

• a rigid motion

Tags

CCSS.HSG.CO.B.6

Which of the following are the coordinates of the image of (12,-5) after a reflection across the x-axis?

• (12,5)

• (-5,12)

• (-12,-5)

• (-12,5)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A transformation is given by the rule (x+3,y-8) . Which of the following describes the effect of this transformation on an object?

• a translation by 8 units left and 3 units up

• a rotation by 90 degrees counterclockwise about the origin

• a translation by 3 units right and 8 units down

• a reflection across the line x = 3

Tags

CCSS.HSG.CO.A.2

A translation maps the point A(-4,7) to the point A' (6,11). Which of the following are the coordinates of the point B (4,15) under the same translation?

• B'(10,4)

• B'(18,11)

• B'(12,21)

• B'(14,19)

Tags

CCSS.HSG.CO.A.2

It’s known that triangle MNP is the image of triangle ABC after a rotation about the origin by 90 degrees clockwise point A. Which of the following must be true?

• 
• 
• 
• 

Tags

CCSS.HSG.CO.B.6

CCSS.8.G.A.2

In the grid shown, triangle DEF is the image of triangle ABC after a line reflection. Part A: State the line of reflection that allows triangle ABC to be mapped onto triangle DEF.

(a)  

Tags

CCSS.8.G.A.3

In the grid shown, triangle DEF is the image of triangle ABC after a line reflection.

Part B: Name an angle in triangle DEF that is congruent to <ACB.

(a)  

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

In the grid shown, triangle DEF is the image of triangle ABC after a line reflection.

Part C: Why must the angle you gave in part B be congruent to < ACB?

Tags

CCSS.HSG.CO.B.6