(01.02 mc)the number line shows the distance in meters of two birds, a and b, from a worm located at point x: a horizontal number line extends from negative 3 to positive 3. the point labeled as a is at negative 2.5, the point 0 is labeled as x, and the point labeled b is at 2.5. write an expression using subtraction to find the distance between the two birds. (5 points) show your work and solve for the distance using additive inverses. (5 points)

Let's first represent the numerical linear as follows
 -3 -2 -1 0 1 2 3
 point A (-2.5, 0)
 point X (0,0)
 point B (2.5, 0)
 Part A 
 Let
 P1 (x1, y1)
 P2 (x2, y2)
 subtraction of two points is given by
 P2-P1 = (x2, y2) - (x1, y1) = (x2-x1, y2-y1)
 Part B 
 The distance between the two birds is given by subtracting the points B A
 B-A = (2.5, 0) - (- 2.5, 0) = (5.0)
 The distance between the two birds is 5 units.
 Answer
 (x2-x1, y2-y1)
 (5,0): The distance between the two birds is 5 units.

The answer would be the second choice : )