Question

what is the length of $overline{ef}$?

Explanation:

Step1: Identify coordinates

The coordinate of point E is -76 and the coordinate of point F is -74.

Step2: Use distance formula

The distance between two points on a number - line is given by \(|x_2 - x_1|\). Here, \(x_1=-76\) and \(x_2 = - 74\). So, \(EF=|-74-(-76)|\).

Step3: Simplify the expression

\(|-74 + 76|=|2| = 2\).

Answer:

2