Please help me, this is quite hard
\(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\ d=\sqrt{(-7-(-1))^2+(6-(-2))^2}\\ d=\sqrt{(-6)^2+(8)^2}\\ d=\sqrt{36+64}\\ d=\sqrt{100}\\ d=10\)
