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 .........
\(3: 4\)
\(4: 3\)
\(3: 2\)
\(2: 3\)
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.