This document summarizes lecture 3 of an analytic geometry course which covered calculating the area of polygons given coordinate points, the standard and general equations of straight lines, and sample problems for each topic. Equations of straight lines included the standard form and general form, while the area of polygons section provided methods for determining area using coordinate points defining the polygon's vertices. Sample problems demonstrated applying the concepts.

1. ANALYTIC GEOMETRY
MATH 004
Lecture #3
• Area of a polygon given coordinate points
• Straight line
1. Equations of a line
a. Standard equations
b. General equation

2. AREA OF A POLYGON GIVEN
COORDINATE POINTS
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3. Sample Problem
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4. STRAIGHT LINE: EQUATIONS
OF A LINE
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7. Sample Problem
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