a) \( P_x = [3, 0]; P_y = [0, -6]; \)
b) \( P_x = [3, 0]; P_y = [0, 9]; \)
c) \( P_x = [8, 0]; P_y = [0, -4]; \)
d) \( P_x = [3, 0]; P_y = [0, 15]; \)
e) \( P_x = [-2, 0]; P_y = [0, 8]; \)
f) \( P_x = [0, 0]; P_y = [0, 0]; \)
g) \( P_{x} \text{ neexistuje}; P_y = [0, 5]; \)
h) \( P_x = [5, 0]; P_y = [0, 10]; \)