What is the midpoint of the line segment connecting the points (-2,4) and (5,-2)

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Could someone with number 1 and 2

David is standing on the sixth rung of a ladder while painting his house. which expressions represent a change in david’s position of 2 rungs on the ladder? choose exactly two answers that are correct. a. 6+2 b. 6-2 c. 2x6 d. 6/2