AP EAMCET · Maths · Straight Lines
The equation of a line though the point (1, 2) whose distance from the point (3, 1) has the greatest value is
- A y = 2 x
- B y = x + 1
- C x + 2 y = 5
- D y = 3x − 1
Answer & Solution
Correct Answer
(A) y = 2 x
Step-by-step Solution
Detailed explanation
We have plotted the diagram based on the given information. \(\begin{aligned} & \because A B \perp C D \\ & \quad \quad m_{A B} \cdot m_{C D}=-1\end{aligned}\) \(\begin{aligned} m_{A B} \cdot\left(\frac{1-2}{3-1}\right) & =-1 \\ m_{A B} & =2\end{aligned}\) \(\therefore\)…
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