Chapter 9: Matrices Flashcards
0
Q
Matrix reflect across the y-axis
A
-1 0
0 1
1
Q
Matrix to reflect across the x-axis
A
1 0
0 -1
2
Q
Rotate 90 degrees about the origin.
A
(-b, a)
3
Q
Rotate 180 degrees about the origin.
A
(-a, -b)
4
Q
Rotate 270 degrees about the origin.
A
(b, -a)
5
Q
Matrix to rotate figure 90 degrees.
A
0 -1
1 0
6
Q
Matrix to rotate figure 180 degrees.
A
-1 0
0 -1
7
Q
Equation to reflect across the y axis
A
(-a, b)
8
Q
Equation to reflect across the x- axis
A
(a, -b)
9
Q
Matrix to rotate 270 degrees
A
0 1
-1 0
