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If the point (2,3),(1,1), and (x ,3x) ar...

If the point `(2,3),(1,1)`, and `(x ,3x)` are collinear, then find the value of `x `,using slope method.

Text Solution

Verified by Experts

Given Points `A(2,3),B(1,1)`, and `C(x,3x)` are collinear.
Then
slope of AB=Slope of BC
or `(1-3)/(1-2)=(3x-1)/(x-1)`
or `3x-1 =2x-2`
or `x=-1`
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