Geo2.6

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Find the value of x,if the slope of the line joining (2,5),(x,3)\, is 2.

The slope of the line is

{\frac  {3-5}{x-2}}\,

Given the slope is 2,

Now

{\frac  {-2}{x-2}}=2\,

Simplifying

-2=2x-4\,

2x=2\,


Hence the value of x=1.


Main Page:Geometry:Straight Lines-I