Find the distance between the points LaTeX:  \displaystyle \left( 60, \  -69\right) and LaTeX:  \displaystyle \left( 75, \  -61\right) .

The distace formula gives LaTeX:  \displaystyle d=\sqrt{ ((75)-(60))^2 + ((-61)-(-69))^2 }=\sqrt{ 225 + 64 } . Simplifying gives LaTeX:  \displaystyle d = 17 .