Transformations Congruent Similar

A reflection ____________________.

• turns a figure around a point.

• slides an object form one place to another.

• flips or mirrors an object across a line.

• changes the size of an object.

Which rule would dilate shows a scale factor of 4

• (x, y) → (y, x)

• (x, y) → (x + 4, y + 4)

• (x, y) → (x, -y)

• (x, y) → (4x, 4y)

Identify the transformation from C to D.

• 90^o Clockwise Rotation

• 180^o Rotation

• 270^o Clockwise Rotation

• 360^o Rotation

Which of the following scale factors will NOT produce an enlargement?

• 1

• 1.2

• 34.5

• 5/4

Which rule will make the image narrower and move it down?

• (x,y)-->(3x,y+4)

• (x,y)-->(x+3,1/4y)

• (x,y)-->(1/4x,y-3)

• (x,y)-->(1/3x,y+4)

Which algebraic rule will produce a translation that is 5 units to the right?

• (x, y)  --> ( x ,  y + 5)

• (x, y)  --> (  x-5 ,  y + 5)

• (x, y)  --> (  x-2 ,  y + 5)

• (x, y)  --> (  x+5 ,  y)

Triangle ABC is dilated about the origin to form A’B’C’.  If point A is located at ( 10, 12) and point A’ is located at  ( 2, 2.4)  then what scale factor was used to create this dilation?

• .2

• .5

• 5

• 2

Does the transformation shown preserve congruence and/or orientation?

• Congruence yes, Orientation yes

• Congruence No, Orientation No

• Congruence No, Orientation yes

• Congruence Yes, Orientation No

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 dilation with a scale factor of 1/3 is a reduction. 

• True 

• False