- #1
subopolois
- 86
- 0
Homework Statement
give the matrix in the transformation T in each case:
T: is a reflection in the line y= -x
Homework Equations
none that i know of for this question
The Attempt at a Solution
i know y= -x goes from the top left to bottom right in a cartesian plane, so the reflection of the line with initial point (1,1) in the first quadrant would end up in the third quadrant. i get my answer as:
-1 0
0-1
but the answer in the back of the book is:
0 -1
-1 0
why is their matrix the exact opposite as mine?