The distance between two points in cartesian coordinates is given by the following expression:
![d\text{ = }√((x_2-x_1)^2+(y_2-y_1)^2)](https://img.qammunity.org/2023/formulas/mathematics/college/bruqbqa3afksd90r9efrbc3f87poype2g8.png)
The problem is simplified when one of the coordinates, y or x, are equal between the two points. When that happens the distance between them is the difference between the othe other coordinate. Therefore,
![d\text{ = 4 - (-3) = 4 + 3 = 7}](https://img.qammunity.org/2023/formulas/mathematics/college/fv5r37qc8w9y1pa93yfx358bothtp0emfo.png)
The distance between the points is 7 units.