DISTANCE AND MIDPOINT FORMULA (FLASHCARD)

Between any two points, it is the length of the line segment joining the points.

The point that divides the given line segment into two equal parts; the point that bisects the line.

Which among them is the distance formula?
Options:
1. $$d=\sqrt[]{\left(x^2-x^1\right)^2+\left(y^2-y^1\right)^2}$$
2. $$d=\sqrt[]{\left(x^2-x^1\right)^2-\left(y^2-y^1\right)^2}$$
3. $$d=\sqrt[]{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}$$
4. $$d=\sqrt[]{\left(x_2-x_1\right)^2-\left(y_2-y_1\right)^2}$$

Midpoint formula?

Find the distance between the points (5,9) and (-7,-7).

Find the distance between the points (-6,-10) and (-2,-10).

Find the distance between the points (-10,-7) and (-8,-1).

Find the midpoint of the line segment with the given endpoints: (-4,4) and (-2,2).

Find the midpoint of the line segment with the given endpoints: (-1,1) and (5,-5)

Find the midpoint of the line segment with the given endpoints: (2,-1) and (-6,0)