Use the inverse in Exercise 9 to find:
(a) A point in the uv-plane mapping to (2, 1)
(b) A segment in the uv-plane mapping to the segment joining (−2, 1) and (3, 4)

Data From Exercise 9

Show that the inverse of Φ is

Show that Φ(Φ⁻¹(x, y)) = (x, y) and Φ⁻¹(Φ(u, v)) = (u, v).

(x, y) = (3x-y, -5x + 2y)