Answer:
The answer is
4 units
Explanation:
The distance between two points can be found by using the formula
![d = \sqrt{ ({x1 - x2})^(2) + ({y1 - y2})^(2) } \\](https://img.qammunity.org/2021/formulas/mathematics/high-school/apl8x093q2a4lx5b7eihz6tuxz2xttk2du.png)
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
(3,-12) and (3,-8)
The distance between them is
![|EF| = \sqrt{( {3 - 3})^(2) + ({ - 12 + 8})^(2) } \\ = \sqrt{ {0}^(2) + ({ - 4})^(2) } \\ = √(16) \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:](https://img.qammunity.org/2021/formulas/mathematics/high-school/eexevwedxmcl1mefmbj86zkjk00znnjeh1.png)
We have the final answer as
4 units
Hope this helps you