(0 , 5)

(1 , 21/5)

(0 , 21/5)

(1 , 5)

3:5

4:3

2:1

5:3

24.05

24.06

24.07

24.08

$d\ =\ \sqrt{\left(y_{1\ }-\ y_2\right)^2\ -\left(x_{2\ }-\ x_1\right)^2}\$

$d\ =\ \sqrt{\left(x_{2\ }-\ x_1\right)^2\ +\ \left(y_{2_{\ }}-\ y_1\ \right)2}$

$d\ =\ \sqrt{\left(y_{1\ }-\ y\ _2\right)^2\ +\ \left(x_{2\ }-\ x_1\right)}^2$

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

$\sqrt{\left(-2-3\right)^2\ +\ \left(-1-1\right)^2}$

$\sqrt{\left(1-3\right)^2\ +\ \left(-1-2\right)^2}$

$\sqrt{\left(-2-3\right)^2\ -\ \left(-1-1\right)^2}$

$\sqrt{\left(-2-3\right)^2\ -\ \left(-1-1\right)^2}$