Line

Straight line passing through points A [-3; 22] and B [33; -2]. Determine the total number of points of the line which both coordinates are positive integers.

Correct result:

n =  9

Solution:

24x+36y720=0 y=23x+20 x>0y>0x,yN x>0x<30x,yN x{3,6,9,12,15,18,21,24,27} n=9 



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