Coordinate System And Straight Line — NDA Previous Year Questions

How many NDA questions come from Coordinate System And Straight Line?

Coordinate System And Straight Line has contributed 54 questions to National Defence Academy Examination papers between 2021 and 2025 — an average of about 11 questions a year. That count is measured from EByAi’s bank of 15,695 NDA questions, not estimated from a syllabus. Every one of the 54 questions carries a written, step-by-step solution, and each is tagged to Coordinate System And Straight Line within Mathematics, so you can drill this chapter across every year at once instead of hunting through paper PDFs. Practising a chapter’s full PYQ history is the fastest way to learn the patterns examiners reuse.

Sample Coordinate System And Straight Line questions from real NDA papers

These are 5 real questions from the bank — exactly as asked, with the answer one tap away. All 54 Coordinate System And Straight Line questions (with full written solutions) are available in practice.

1. Question 1 · NDA 2025

   For different values of m, the equation 4y=mx-m+2 represents
   1. (A)parallel lines
   2. (B)concurrent lines
   3. (C)lines at a fixed distance from the origin of coordinates
   4. (D)the same line
   Show answerAnswer

   Answer: (B) concurrent lines

2. Question 2 · NDA 2025

   Under what condition will the lines m2x+ny−1=0 and n2x−my+2=0 be perpendicular?
   1. (A)mn−1=0
   2. (B)mn + 1 = 0
   3. (C)m + n = 0
   4. (D)m - n = 0
   Show answerAnswer

   Answer: (A) mn−1=0

3. Question 3 · NDA 2025

   What is the area of the region bounded by |x| <= 2k and |y| <= k where k is a positive real number?
   1. (A)$2k^2$
   2. (B)$4k^2$
   3. (C)$5k^2$
   4. (D)$8k^2$
   Show answerAnswer

   Answer: (D) $8k^2$

4. Question 4 · NDA 2025

   If the vertices B and D of a square ABCD are (2, 3) and (4, 1) respectively, then what is the area of the square?
   1. (A)2 square units
   2. (B)3 square units
   3. (C)4 square units
   4. (D)8 square units
   Show answerAnswer

   Answer: (C) 4 square units

5. Question 5 · NDA 2025

   The equation of the locus of a point equidistant from the points (a, b) and (c, d) is (a - c) x + (b - d) y + k = 0. What is the value of k?
   1. (A)$a^2-c^2+b^2-d^2$
   2. (B)$c^2+d^2-a^2-b^2$
   3. (C)$(a^2-c^2+b^2-d^2)/2$
   4. (D)$(c^2+d^2-a^2-b^2)/2$
   Show answerAnswer

   Answer: (D) $(c^2+d^2-a^2-b^2)/2$

Coordinate System And Straight Line questions by year

FAQs

More NDA Mathematics chapters

• Probability (104)
• Trigonometric Angles And Equations (93)
• Statistics (73)
• Sequence And Series (63)
• Determinants (61)
• Permutations And Combinations (58)
• Functions (54)
• Vector Algebra (53)
• Limit Continuity And Differentiability (49)
• Three Dimensional Geometry (48)
• Sets Relations And Functions (43)
• Complex Numbers (41)

All NDA Mathematics chapters →NDA overview →