1. The vertices of ARST are R(1,-1), S(4, 1), and 7(4,-3). What are the coordinates of the image after a 90°
counterclockwise rotation about the origin?
R'(1,-1), S'(-1,-4), T'(3,-4)
a.
b. R'(-1, 1), S'(-4,-1), T'(-4,3)
c.
R'(1, 1), S'(-1,4), T' (3,4)
d. R'(-1,-1), S'(-1,-4), T'(-3,-4)