Congruency and Orientation Rigid

A shape is transformed with the following algebraic rule.  (x,y)→(-y,x) Which of the following statements is true. 

• The image maintains the preimage's orientation only

• The image maintains the preimage's congruence only

• The image maintains the preimage's orientation & congruence

• The image doesn't maintain the preimage's orientation or congruence

A shape is transformed with the following algebraic rule.  (x,y)→(-x,y) Which of the following statements is true. 

• The image maintains the preimage's orientation only

• The image maintains the preimage's congruence only

• The image maintains the preimage's orientation & congruence

• The image doesn't maintain the preimage's orientation or congruence

A transformation is applied to a figure to create a new figure on a coordinate grid. Which transformation does NOT preserve congruence?

• A rotation of 270° counterclockwise

• A reflection across the y-axis

• A dilation by a scale factor of 1.5

• A translation of 50 units down

A transformation that preserves length and angle measure. 

• Equal Transfor- mation

• Equality

• Congruency

• Isometry

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

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

A transformation is applied to a figure to create a new figure. Which transformation does NOT preserve congruency?

• Translation

• Reflection

• Rotation

• Dilation

Was the orientation preserved or changed?

• Changed

• Preserved

The pentagon WASED is translated up 7.  Which of the following statements is true. 

• The image maintains the preimage's orientation only

• The image maintains the preimage's congruence only

• The image maintains the preimage's orientation & congruence

• The image doesn't maintain the preimage's orientation or congruence

Which representation of a transformation on a coordinate grid does not preserve congruence?

• translation

• dilation

• rotation

• reflection