# Alg6.3

From Example Problems

For these pairs of points, find the midpoint, distance, slope, and equation of the line.

To find the midpoint, average the x coordinates and y coordinates. The midpoint is

To find the (always zero or positive) distance, use the formula

To find the slope, use the formula

The equations of the line are

**Form 1:**

Plug in one known point (say, ) and the calculated slope.

Now plug and into the line equation:

**Form 2:**

Plug in one known point (say, ) and the calculated slope.