Find the distance between points A and B if A (-x + 0.2), B (-2.5-x).

It is known from the condition that points A and B are given by coordinates. We need to find the distance between the points if A (-x + 0.2), B (-2.5 – x).

Let’s remember how to find the distance between points on a straight line.

In order to find the distance between the ends of the segment (the length of the segment), we must subtract the coordinate of the left end of the segment from the coordinates of the right end of the segment.

Let’s apply the rule and get:

| BA | = a – b = -x + 0.2 – (-2.5 – x) = -x + 0.2 + 2.5 + x = x – x + 2.5 + 0.2 = x (1 – 1) + 2.7 = 2.7.

Answer: the distance between points A and B is 2.7.