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Class 11 Mathematics — Chapter 10: Straight Lines
66 practice questions · 22 Easy · 22 Medium · 22 Hard
Free NCERT-aligned multiple-choice practice for Class 11 Mathematics, Chapter 10 (Straight Lines). Practise timed Easy, Medium and Hard quizzes with instant explanations — built for CBSE Board exams, JEE Main and NEET UG. Here are a few sample questions; sign in free to practise all 66.
Sample questions
Q1Easy
Slope of line through (1,2) and (3,8):
A.3✓ correct
B.2
C.4
D.6
Why
(8−2)/(3−1)=3.
Q2Medium
Two non-vertical lines are parallel iff:
A.Slopes are equal✓ correct
B.Slopes are negatives
C.Product of slopes is −1
D.Slopes differ by 1
Why
Same slope → parallel.
Q3Hard
Two lines are perpendicular iff:
A.m₁·m₂ = −1✓ correct
B.m₁ = m₂
C.m₁+m₂=0
D.Both zero
Why
Slopes are negative reciprocals.
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