What does the identity matrix do?
A). Scales the object
B). Moves the object
C). Rotates the object
D). Leaves the object unchanged
Which transformation does a skewing matrix perform?
A). Rotation
B). Scaling
C). Shearing
D). Reflection
What happens to a vector multiplied by the zero matrix?
A). It is rotated
B). It is scaled
C). It becomes a zero vector
D). It becomes an identity vector
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
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
Which matrix operation is used for scaling?
A). Addition
B). Subtraction
C). Multiplication
D). Division
Which matrix operation is used for rotation?
A). Addition
B). Subtraction
C). Multiplication
D). Division
What does a scaling matrix look like?
A). [[1, 0], [0, 1]]
B). [[0, 1], [1, 0]]
C). [[s, 0], [0, s]]
D). [[0, s], [s, 0]]
What is the determinant of a scaling matrix?
A). Always 1
B). Always 0
C). Depends on the scaling factor
D). Always -1
What is the effect of a reflection matrix?
A). Scales the object
B). Moves the object
C). Rotates the object
D). Mirrors the object