The equation of the vertical line is x = 4
Here, we want to write the equation of a vertical line passing through the given point
The equatuin of a vertical line is of the form;
![x\text{ = k}](https://img.qammunity.org/2023/formulas/mathematics/college/skhtwe573pxhd13mq3tn498nfaql0g1eky.png)
where k represents the x-axis coordinate value
The x-axis coordinate value here is 4
So the equation of the line is;
![x\text{ = 4}](https://img.qammunity.org/2023/formulas/mathematics/college/17rhqkv75rvo1nsdud429cl0hwnsugtdkr.png)