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Given the point (1, 2), find the equati...

Given the point (1, 2), find the equation of a line on which it lies. How many such equations are there?

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In geometry, there exists infinitely many points passing through a given point.
The general equation of line is as follows:
ax + by + c = 0 , where a, b, and c are real numbers.
So, if the line pass through the point ( 1,2), we can get relation between a, b and c, as follows:
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