Question

Bob and Mary is looking at Johns paper and see matrix multiplication problem He know that that Johns paper is
[0,-1][2,4,6]
[1,0] [1,6,0]

Answer 1

A.
rotating a triangle 90º clockwise
B.
rotating a triangle 90º counterclockwise
C.
reflecting a triangle in the line y = x
D.
reflecting a triangle in the x-axis

Answer 2

run each column from the left thru the right matrix to define new positions

Answer 3

i cant tell right form left today :/

Answer 4

take 2,1

2*0+1*-1 = 0 - 1 = -1
1 0 = 2+ 0 = 2


2,1 -> -1,2