find the distance between a and b on the number line below.\ndistance:

Explanation:

Step1: Identify the coordinates

Let the coordinate of point A be -6 and the coordinate of point B be 4.

Step2: Use the distance formula

The distance $d$ between two points $x_1$ and $x_2$ on a number - line is $d=\vert x_2 - x_1\vert$. Here, $x_1=-6$ and $x_2 = 4$. So $d=\vert4-(-6)\vert$.

Step3: Simplify the expression

$\vert4 - (-6)\vert=\vert4 + 6\vert=\vert10\vert = 10$.

Answer:

10