Question

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

Explanation:

Step1: Identify the coordinates

The coordinate of point $W$ is - 5 and the coordinate of point $X$ is 25.

Step2: Use the distance formula on a number - line

The distance $d$ between two points $a$ and $b$ on a number - line is $d=\vert b - a\vert$. Here, $a=-5$ and $b = 25$, so $d=\vert25-(-5)\vert$.

Step3: Simplify the expression

$\vert25-(-5)\vert=\vert25 + 5\vert=\vert30\vert = 30$.

Answer:

30