The area, if possible, of the triangle, the coordinates of whose vertices are given or show that the points are collinear.
Answer to Problem 129CR
The area of the triangle is equal to
Explanation of Solution
Given: The given coordinates of the points are
Concept Used: Consider a triangle whose vertices have the coordinates
In case the three points are collinear, the value of the determinant will be zero.
Calculations: The given coordinates are
Therefore, area of the triangle is
Chapter 7 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
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