# What is the distance between the points G (-15, -7) and H (-4, -7)?

Dec 30, 2016

d=11

#### Explanation:

The distance between two points is calculated by the formula:

$d = \sqrt{{\left({x}_{2} - {x}_{1}\right)}^{2} + {\left({y}_{2} - {y}_{1}\right)}^{2}}$

where (x_1;y_1) and (x_2;y_2) are the given points.

But, in this case, you can note that G and H's second coordinates are equal, then you simply can calculate

$d = | {x}_{2} - {x}_{1} | = | - 4 + 15 | = 11$