What is the result of multiplying two orthogonal matrices?
A). A diagonal matrix
B). A non-orthogonal matrix
C). An identity matrix
D). A reflection matrix
What is the effect of a reflection matrix?
A). Scales the object
B). Moves the object
C). Rotates the object
D). Mirrors the object
Which matrix operation is used for scaling?
A). Addition
B). Subtraction
C). Multiplication
D). Division
What does the identity matrix do?
A). Scales the object
B). Moves the object
C). Rotates the object
D). Leaves the object unchanged
What does a rotation matrix for 90 degrees look like?
A). [[1, 0], [0, 1]]
B). [[0, -1], [1, 0]]
C). [[0, 1], [-1, 0]]
D). [[-1, 0], [0, -1]]
Which matrix operation is used for mirroring?
A). Addition
B). Subtraction
C). Multiplication
D). Division
Which transformation does a skewing matrix perform?
A). Rotation
B). Scaling
C). Shearing
D). Reflection
What is the result of multiplying an object by the identity matrix?
A). It is rotated
B). It is scaled
C). It is translated
D). It remains unchanged
Which matrix operation is used for rotation?
A). Addition
B). Subtraction
C). Multiplication
D). Division
What is the determinant of a scaling matrix?
A). Always 1
B). Always 0
C). Depends on the scaling factor
D). Always -1