Question

skill code: 1604001 find the distance between points u and h.

Explanation:

Step1: Identify the coordinates

Let the coordinate of point U be - 20 and the coordinate of point H be 10.

Step2: Use the distance formula on a number - line

The distance $d$ between two points $a$ and $b$ on a number - line is $d=\vert a - b\vert$. Here, $a=-20$ and $b = 10$, so $d=\vert-20 - 10\vert=\vert-30\vert$.

Step3: Calculate the absolute value

$\vert-30\vert = 30$.

Answer:

30