Unit 2 Part 1 Vocabulary (Rigid Transformations)

A type of transformation where a figure is “flipped” over a line of symmetry. A reflection produces a mirror image of a figure.

• rotation
• translation
• dilation
• reflection

A transformation that “turns” a figure about a fixed point at a given angle and a given direction.

• rotation
• translation
• reflection
• dilation

A slide is also called a _________.

• Translation
• Reflection
• Rotation
• Transformation

Label the coordinate plane.

a

b

c

origin

x axis

y axis

Label the coordinate plane.

b

c

d

a

Quadrant 3

Quadrant 2

Quadrant 1

Quadrant 4

Label the coordinate plane.

b

c

d

a

(+, -)

(+, +)

(-, +)

(-, -)

Congruencey is when two figures have the ​ (a)   ​ (b)   and ​ (c)  

• same
• size
• shape
• angle
• different
• similarity
• width
• height
• transformation
• translation

This transformation is a ​ (a)   ​ove the ​ (b)   axis.

• reflection
• x
• translation
• rotation
• y
• dilation

Determine where X' would be if you translated X 3 units to the left and 9 units down.

• (-4, 4)
• (-10, 2)
• (-4, -5)
• (-1, 5)

Plot the points of the image if the triangle translated 5 down and 3 left.