The ratio in which the point \(P\), whose abscissa is 3, divides the join of \(A(6,5)\) and \(B(-1,4)\) is…

The ratio in which the point \(P\), whose abscissa is 3, divides the join of \(A(6,5)\) and \(B(-1,4)\) is equal to .........
  1. \(3: 4\)
  2. \(4: 3\)
  3. \(3: 2\)
  4. \(2: 3\)

Solution

Let the point \(P\) where abscissa is 3, divides the join of points \(A(6,5)\) and \(B(-1,4)\) is \(\lambda: 1\), then \(\begin{aligned} & & & =\frac{-\lambda+6}{\lambda+1} \\ \Rightarrow & & 3 \lambda+3 & =-\lambda+6 \\ \Rightarrow & & 4 \lambda & =3 \Rightarrow \lambda: 1=3: 4 \end{aligned}\) Hence, option (a) is correct.

Asked in: AP EAMCET 2020 (18 Sep Shift 2)

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