# Distance between 2 points

Find the distance between the points (7, -9), (-1, -9)

Result

d =  8

#### Solution:

$x_{ 0 } = 7 \ \\ y_{ 0 } = -9 \ \\ \ \\ x_{ 1 } = -1 \ \\ y_{ 1 } = -9 \ \\ \ \\ d = \sqrt{ (x_{ 1 }-x_{ 0 })^2+(y_{ 1 }-y_{ 0 })^2 } = \sqrt{ ((-1)-7)^2+((-9)-(-9))^2 } = 8$

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