The document discusses the midpoint and distance formulas. It defines the midpoint as the point that divides a segment into two congruent segments. The midpoint formula is given as (x1 + x2)/2, (y1 + y2)/2. The distance formula is given as the square root of (x2 - x1)2 + (y2 - y1)2, which is the length of the hypotenuse of a right triangle formed by the differences in the x- and y-coordinates. Homework problems from page 19 numbers 4 through 36 are assigned, excluding number 24.