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isCollinear >

Exercise 8.3: slope

Added by: Will Beebe
Keywords: classes

Add the following method to the Point class:

public double slope(Point other)

Returns the slope of the line drawn between this Point and the given other Point. Use the formula (y2 - y1) / (x2 - x1) to determine the slope between two points (x1, y1) and (x2, y2). Note that this formula fails for points with identical x-coordinates, so throw an IllegalArgumentException in this case. 

public class Point {
    private int x;
    private int y;
    
    // your code goes here
    
}

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