Mathematics · Straight lines

JEE Main 2026 — 2 April, Morning Shift — Question 27

Two vertices of a triangle are (0,2)(0,2) and (4,3)(4,3). If its orthocentre is at the origin, then its third vertex lies in which quadrant?

  1. Option A:

    Fourth

  2. Option B:

    Third

  3. Option C:

    First

  4. Option D:

    Second

    Correct

Answer: D

Step-by-step solution

\begin{array}{*{35}{r}}{} & {{m}_{BC}}\times {{m}_{AH}}=-1 \\{} & ~\Rightarrow \text{ }\!\!~\!\!\text{ }{{m}_{BC}}=-\frac{1}{{{m}_{AH}}} \\{} & ~\Rightarrow {{m}_{BC}}=\frac{\beta -3}{\alpha -4}=0 \\\end{array}

⇒β=3\Rightarrow \beta =3 mAB×mCH=−1{{m}_{AB}}\times {{m}_{CH}}=-1

⇒14×βα=−1\Rightarrow \frac{1}{4} \times \frac{\beta}{\alpha}=-1

⇒β=−4α\Rightarrow \beta=-4 \alpha

⇒α=−34\Rightarrow \alpha=-\frac{3}{4}

Vertex CC Is (−34,3)\left(\frac{-3}{4}, 3\right)

⇒\Rightarrow Vertex CC lies in second quadrant.

⇒\Rightarrow Option (4) is correct.

Solution figure

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Subject
Mathematics
Chapter
Straight lines
Topic
Special Points in a Triangle
Two vertices of a triangle are (0,2) and (4,3) . If its orthocentre… | JEE Main 2026 PYQ with Solution · DhiX AI