Find the coordinates of triangle PQR with vertices P(-3, -2), Q(-1, 4), and R(2, -2) under the translation
(x,y) → (x+2y-4)
a. P'(-1, 2), Q'(1,8), R(4, 2)
b. P'(-5, -6), Q'(-3, 0), R(-4, -6)
c. P'(-1, -6), Q'(1, 0), R(4, -6)
d. P'(-5, 2), Q'(-3, 8), R(-4, 2)