Question

use the number line to find jk. jk =

Explanation:

Step1: Identify coordinates

The coordinate of point $J$ is $-7$ and the coordinate of point $K$ is $- 4$.

Step2: Calculate distance

The distance between two points on a number - line is given by the absolute value of the difference of their coordinates. So, $JK=\vert-4-(-7)\vert$.

Step3: Simplify expression

First, simplify $-4-(-7)=-4 + 7=3$. Then, $\vert3\vert = 3$.

Answer:

$3$