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Mathematics - Straight Lines

Practise 6 IAT (IISER) previous year questions on Straight Lines, compiled from papers spanning 2019 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty IAT (IISER) tests.

Straight Lines has been asked in 4 of the 9 years of IAT (IISER) papers analysed (2017–2026), with 6 questions in all. 0% of them were easy, 67% moderate and 33% tough. Most of its questions came from 2024, with 3 questions that year. In the last three years (2023–2026) it had 3 questions across 3 papers, about 1 per paper.

The chapter's 5 topics are not weighted equally: Coordinate System (2 questions, 33%), Straight Lines (1 question, 17%), and Basic Forms of Straight Line (1 question, 17%) have been asked the most. Coordinate System has also led over the last five years, with 2 questions. Basic Forms of Straight Line has produced the most tough questions (1).

  1. 1Consider the following lines in the -plane: : the line passing through and , : the line passing through and parallel to the vector . Let . W2024Angle between Lines
  2. 2Let be the set of points in the -plane which are equidistant from and . Let be the set of points in the -plane which are equidistant from an2024Coordinate System
  3. 3In the given figure, the angles ; and the lengths unit, unit, and unit. What is the length of ?2024Coordinate System
  4. 4Suppose are such that the points , and in the coordinate plane are distinct, collinear, and the line passing through these points is not par2021Point and Line
  5. 5Let and be the line . Which of the following statements is not correct?2020Basic Forms of Straight Line
  6. 6Consider 5 straight lines in a plane such that no two of them are parallel and no three of them intersect at a point. Then, the number of di2019Straight Lines

Frequently Asked Questions

1.How many questions are available for Straight Lines?

This chapter includes 6 questions compiled from IAT (IISER) papers spanning 2019 to 2024.

2.Are these questions only from IAT (IISER), or from other exams too?

These are IAT (IISER) questions specifically for the Straight Lines chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Straight Lines an important chapter for IAT (IISER) Mathematics?

Straight Lines has appeared in 4 of the 10 years of IAT (IISER) papers covered here, with 6 questions across 4 papers - about 2 per paper it appears in.

4.What is the difficulty level of Straight Lines questions in IAT (IISER)?

Of the 6 questions analysed for this chapter, 0% are easy, 67% moderate and 33% tough. 2024 had the most, with 3 questions.

5.Which topics in Straight Lines should I focus on?

These topics have carried the most weightage in Straight Lines:

  • Coordinate System - 2 questions (33%)
  • Straight Lines - 1 question (17%)
  • Basic Forms of Straight Line - 1 question (17%)
  • Basic Forms of Straight Line has produced the most tough questions (1).
6.Is Straight Lines's weightage in IAT (IISER) going up or down?

Across all 4 papers analysed, Straight Lines has averaged about 1.5 questions per paper. In the last three years (2023–2026), that average has fallen, at about 1.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.