Distance Formula

How is the distance formula correctly written? Options: $$d = \sqrt{(y_1 - y_2)^2 - (x_2 - x_1)^2}$$ , $$d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$$ , $$d = \sqrt{(y_1 - y_2)^2 + (x_2 - x_1)^2}$$ , $$d = \sqrt{(x)^2 - (y)^2}$$

A(3,1) B(-2,-1) written correctly is:
Options:
1. $$\sqrt{\left(-2-3\right)^2\ +\ \left(-1-1\right)^2}$$
2. $$\sqrt{\left(1-3\right)^2\ +\ \left(-1-2\right)^2}$$
3. $$\sqrt{\left(-2-3\right)^2\ -\ \left(-1-1\right)^2}$$
4. $$\sqrt{\left(-2-3\right)^2\ -\ \left(-1-1\right)^2}$$

Find the distance between (-3, -11) and (8, -42).

Find the direct distance between the court house and the town hall. Options: 26.89 km, 6.81 km, 10.02 km, 7.21 km

Find the distance between J and K.

Find the distance.
Options: 7.11, 7.81, 8.71, 8.91

Find the distance.

Find the distance between the points (4, 3) and (0, 6).

What is the distance between the two points?

Find the distance between (-4, 5) and (7, 18).