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2015-03-10T15:58:37+05:30

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We have formula:

  \frac{y-y1}{y2-y1}  \frac{x-x1}{x2-x1}

 \frac{x}{a} +  \frac{y}{b} = 1


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Yes, i got a calculator for it now only. https://www.easycalculation.com/analytical/point-slope-form-calculator.php. The next doubt arised is without slope, why it is called as point slope form.
2015-03-10T16:04:04+05:30
M = (y2 - y1)/(x2 - x1)
BY THIS WE CAN FIND THE EQUATION OF THE STRAIGHT LINE WHEN SLOPE IS NOT GIVEN.
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