Question

find su.
-2 -1 0 1 2 3 4
s t u

Explanation:

Step1: Identify coordinates

The coordinate of point $S$ is - 2 and the coordinate of point $U$ is 3.

Step2: Use distance formula

The distance between two points $a$ and $b$ on a number - line is $|b - a|$. Here, $a=-2$ and $b = 3$, so $SU=|3-(-2)|$.

Step3: Simplify the expression

$|3-(-2)|=|3 + 2|=|5| = 5$.

Answer:

5