Concept explainers
To find: whether the given points are collinear and also justify the reason.
Answer to Problem 29E
The points
Explanation of Solution
Given information:
The given points are
Calculation:
Let the point-coordinates A, B and C be
If the line from A to B has the same slope as the line from A to C, then these points form a straight line and are collinear.
Put the point coordinates
Thus, the slope of AB is
Put the point coordinates
Thus, the slope of AC is
The line from A to B has the same slope as the line from A to C. This means that it is a straight line. So, the given points are collinear.
Chapter 1 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
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