[tex] \sqrt{ {(x2 - x1)}^{2} + {(y2 - y1)}^{2}} [/tex]
Here,
x1 = - 3
y1 = 5
x2 = - 6
y2 = - 4
Distance =
[tex] = \sqrt{ { ( (- 6 ) - ( - 3))}^{2} + { ( - 4 - 5)}^{2} } \\ = \sqrt{ {( - 3)}^{2} + {( - 9)}^{2} } \\ = \sqrt{9 + 81} \\ = \sqrt{90} [/tex]
Hope this will help you....