It is known that the corresponding numbers of two points AB on the number axis are - 1 and 3 respectively, and the corresponding number of point P is X (3) When the distance between point a and point B is 3, what is the corresponding number of point P

It is known that the corresponding numbers of two points AB on the number axis are - 1 and 3 respectively, and the corresponding number of point P is X (3) When the distance between point a and point B is 3, what is the corresponding number of point P

(3) At the beginning, the distance between a and B is: 3 - (- 1) = 4. ① when point a is on the left side of point B and ab = 3, the distance that a walks more than B is 4-3 = 1. The required time is 1 ÷ (2-0.5) = 2 / 3 (minutes); at this time, the distance that point P walks is 6x (2 / 3) = 4, that is, the number corresponding to p is - 4; ② when point a is on the right side of B and ab = 3, the distance that a walks more than B is 4 + 3 = 7