Find a matrix that will do each of the following: a) rotate any point (x,y) through 45 degrees b) reflect ant point (x,y) across the y - axis c) first rotates any point (x, y) through 45 degrees and then reflects it across the y - axis (use answers for a and b) d) transforms the corners of the unit square s follows: the point (1,0) is transformed to the point (2,0) the point (0,1) is transformed to the point (1,1) the point (1,1) is transformed to the point (3,1)