Question about linear transformations if you have a matrix such as | 5 6 9 | | 5 0 3 | | 9 -3 -7 | Can it be a matrix transformation? Or does it have to follow the identity matrix? Can be a transformation and the "y" transformation being just makes the it flat on the y axis? or does it have to be a form of the identity matrix? Or am I totally misunderstanding this?