How do you state the order of a matrix?

Under what circumstances can matrices be added and subtracted?

How do you multiply two matrices?

What is the non-commutativity of matrix multiplication?

What happens when you multiply a matrix by the identity matrix?

How do you transpose a matrix?

What matrix represents a rotation 90 degrees anticlockwise about O?

What matrix represents a rotation 90 degrees clockwise about O?

What matrix represents a rotation 180 degrees about O?

What matrix represents a reflection in the x-axis?

What matrix represents a reflection in the y-axis?

What matrix represents a reflection in y=x?

What matrix represents a stretch of sf a in the x-axis and sf b in the
y-axis?

What matrix represents a shear, of sf a, parallel to the x-axis?

What matrix represents a shear, of sf a, parallel to the y-axis?

What does the matrix BA represent?

What matrix represents a reflection in the plane:
A) x=0 B) y=0 C) z=0

What matrix represents a reflection in the plane:
A) x=y B) y=z C) z=x