Three points P, Q, and R are said to be collinear if they are on a single line. To check whether the 3 points lie on the same line, we use the distance formula. If P, Q and R are three collinear points, then: Distance from P to Q + Distance from Q to R = Distance from P to R PQ + QR = PR The distance between two points (x1, y1) and (x2, y2) is given by Hence, we can easily find the distance between the points P, Q and R, with the help of this formula.  Design an algorithm (pseudocode) to check whether three points are collinear. In your solution include the input and the output.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Three points P, Q, and R are said to be collinear if they are on a single line. To check whether the 3 points lie on the same line, we use the distance formula. If P, Q and R are three collinear points, then:

Distance from P to Q + Distance from Q to R = Distance from P to R

PQ + QR = PR

The distance between two points (x1, y1) and (x2, y2) is given by

Hence, we can easily find the distance between the points P, Q and R, with the help of this formula. 

Design an algorithm (pseudocode) to check whether three points are collinear. In your solution include the input and the output.

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