Question

find the length of vw
v - 31
w - 13
vw =?

Explanation:

Step1: Use distance formula

The distance between two points \(a\) and \(b\) on a number - line is \(|a - b|\). Here \(a=-31\) and \(b = - 13\). So \(VW=|(-31)-(-13)|\).

Step2: Simplify the expression

\[

$$\begin{align*} |(-31)-(-13)|&=| - 31 + 13|\\ &=|-18|\\ &=18 \end{align*}$$

\]

Answer:

18