2. Scalar Equation of a Line.notebook
May 19, 2011
The standard form of the equation of a line Ax + By + C = 0
can be developed using one point on the line and its slope.
of the
This form is also referred to as the
scalar equation
of the line.
line or as the
Cartesian equation
An alternate development of this equation makes use of vector
concepts.
Ex 1. Develop a scalar equation of the line through the point
P
(4, 1) with normal, n = (3, 5) using vectors.
0
P
(4, 1)
0
3