Question

find the length of the segment ab
the length is (type an integer or a decimal.)

Explanation:

Step1: Identify coordinates of A and B

Let's assume A is at - 2 and B is at - 1.

Step2: Use distance formula on number - line

The distance between two points \(x_1\) and \(x_2\) on a number - line is \(d=\vert x_2 - x_1\vert\). Here, \(x_1=-2\), \(x_2 = - 1\), so \(d=\vert-1-(-2)\vert=\vert-1 + 2\vert=\vert1\vert = 1\).

Answer:

1