4. determine whether the relation is a function( (1, -4), (2, 1), (3, 4), (3, 3), (4, 2)
B. yes
C. no

Can somebody me out with this question

The vertices of a rectangle are given in the columns of the matrix . if is found to perform a transformation, what are the coordinates of the transformed rectangle? (0, 0), (0, –3), (–3, –3), (–3, 0) (0, 0), (0, 3), (3, 3), (3, 0) (0, 0), (0, 3), (–3, –3), (–3, 0) (0, 0), (0, 3), (–3, 3), (–3, 0)

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?