2C+finding+equations+of+lines

1. http://www.algebra-online.com/equations-lines-point-slope-1.htm

2.http://www.ltcconline.net/greenl/courses/152a/functgraph/LINEQAT.HTM

Find the equation of a line that passes through point (2,3) with a slope of 3.

y = mx + b 3 = 3(2) + b 3 = 6 + b -3 = b

y = 3x - 3

Find the equation of a line passing through points (1,2) and (4,6)

m = __y2 - y1__ x2 - x1 m = __6 - 2__ 4 - 1 m = 4/3

y = mx + b 2 = 4/3(1) + b b = 2/3 y = 4/3x + 2/3