Transformations

Question 1

image meaning?

Answer 1

the result of a transformation

Question 2

line of reflection meaning?

Answer 2

the perpendicular bisector of the segment joining each point on the pre image to the corresponding point on the image

Question 3

perpendicular bisector meaning?

Answer 3

a line, ray, or line segment that intersects a segment and is perpendicular to the segment at its mid point

Question 4

pre image meaning?

Answer 4

a geometric shape before the transformation

Question 5

reflection meaning?

Answer 5

mirrored geometric shape by flipping it across the line of reflection

Question 6

rigid transformation meaning?

Answer 6

a transformation that preserves the size, length, shape, lines and angle measures of a figure

Question 7

the pre image and image are congruent T or F?

Answer 7

True

Question 8

The name for reflected figures?

Answer 8

Prime

Question 9

reflections preserve orientation, T or F?

Answer 9

False

Question 10

vertices are congruent always, T or F?

Answer 10

False

Question 11

What is the R X axis rule?

Answer 11

X,Y become X,-Y

Question 12

What is the R Y Axis rule?

Answer 12

X,Y becomes -X,Y

Question 13

What is the R X = Y (or R Y = X) rule?

Answer 13

X,Y becomes Y,X

Question 14

What is the R Y = - X rule?

Answer 14

X,Y becomes -Y,-X

Question 15

Translation meaning?

Answer 15

a rigid transformation that moves every point of the pre image of an object the same distance and direction to create the image

Question 16

All of the segments are parallel and the same length T, or F?

Answer 16

True

Question 17

A way to represent a translation?

Answer 17

A function

Question 18

What is T A,B X,Y rule?

Answer 18

X,Y becomes X + A, Y + B

Question 19

Guide to moving on the X axis for translations?

Answer 19

(#+,Y) = move right
(#-,Y) = move left (negative)

Question 20

guide to moving on the Y axis for translations?

Answer 20

(X,+#) = move up
(X,-#) = move down (negative)

Question 21

angle of rotation meaning?

Answer 21

measure of how much a shape is rotated around a point

Question 22

center of rotation meaning?

Answer 22

the fixed point around which a shape is rotated

Question 23

rotation meaning?

Answer 23

original transformation that changes the position of a shape

Question 24

how can you tell if the angle measure is negative or positive?

Answer 24

negative - clockwise
positive - counter clockwise

Question 25

Ro 90° ?

Answer 25

X,Y become Y-,X

Question 26

Ro 180° ?

Answer 26

X,Y becomes -X,-Y

Question 27

Ro 270° ?

Answer 27

X,Y becomes Y,-X

Question 28

does the center of rotation change position? T or F

Answer 28

False

Question 29

are segments that are connecting corresponding vertices to the center of rotation congruent? T or F

Answer 29

True

Question 30

when is orientation preserved in a rotation?

Answer 30

only a 360° rotation