Unit 5 Geometry Flashcards
1
Q
Translation
A
“slide,” ± from x,y — (x+a, y+b)
Notation: Ta,b or <a,b>
2
Q
Reflection X-Axis
A
“flip,” (x,-y)
Notation: r x-axis
3
Q
Reflection Y-Axis
A
“flip,” (-x,y)
Notation: r y-axis
4
Q
Reflection Y = x
A
“flip,” (y,x)
Notation: r y=x
5
Q
Reflection Y = -x
A
“flip,” (-y,-x)
Notation: r y=-x
6
Q
Reflection X = c
A
“flip,” (2c-x,y)
Notation: r x=c
7
Q
Reflection Y = c
A
“flip,” (x,2c-y)
Notation: r y=c
8
Q
Rotation 90 Around Origin
A
“turn,” (-y,x)
Notation: R 90
9
Q
Rotation 180 Around Origin
A
“turn,” (-x,-y)
Notation: R 180
10
Q
Rotation 270 Around Origin
A
“turn,” (y,-x)
Notation:R 270
11
Q
Properties persevered and changed in translation & Rotation-
A
P: Size
Angle Measures
Orientation
C: Location
SAME FOR BOTH
12
Q
Properties persevered and changed in Reflection:
A
Size
Angle Measures
Location
Orientation
