Matrices

Question 1

What is the matrice for a reflection in the y axis

Answer 1

(-1 0)
(0 1)

Question 2

What is the matrice for a reflection in the x axis

Answer 2

(1 0)
(0 -1)

Question 3

What is the matrice for a rotation

Answer 3

(Cos theta -sin theta)
(Sin theta cos theta)

Question 4

What is the matrice for an enlargement length scale factor K

Answer 4

K (a b)
(C d)

Question 5

What is the matrice for a stretch scale factor k in the x direction

Answer 5

(K 0)
(0 1)

Question 6

What is the matrice for a stretch scale factor k in the y direction

Answer 6

(1 0)
(0 k)

Question 7

What is the matrice for a shear parallel to the x axis x axis invariant, scale factor k

Answer 7

(1 k)
(0 1)

Question 8

what is the matrice for a shear parallel to the y axis, y axis invariant shear factor K

Answer 8

(1 0)
(K 1)

Question 9

What is the matrice for a reflection in the line y = x

Answer 9

(0 1)
(1 0)

Question 10

What is the matrice for a reflection in the line y = -x

Answer 10

(0 -1)
(-1 0)

Question 11

What is the matrice for a reflection in the line y = -x

Answer 11

(0 -1)
(-1 0)