CBSE Class 11 Maths Revision Notes Chapter 10

Class 11 Mathematics Revision Notes for Chapter 10 Straight Lines

Extramarks’ Class 11 Mathematics Revision Notes for Chapter 10 provide clear explanations of the concepts needed for Chapter 10 Straight Lines. According to the CBSE curriculum, the notes offer concise points that address crucial NCERT chapter themes. Written by subject matter experts, these notes are readily available to students. Reading these notes will give students a good understanding of every topic in Class 11 Mathematics.

Download Free Class 11 Mathematics Notes of Straight Lines Free 

Before examinations, most students become doubtful and stressed which may cause them to waste time reviewing meaningless material. However, students can refer to revision notes provided by Extramarks for different chapters to cover vital points and finish the syllabus on time. Class 11 Mathematics Revision Notes for Chapter 10 Straight Lines is available on the Extramarks website. These notes are carefully curated for the student’s understanding. Based completely on the NCERT curriculum, these notes can be referred to as an authentic source of revision. 

Quick Glimpses of  Class 11 Mathematics Chapter 10 Straight Lines

The Class 11 Mathematics Revision Notes for Chapter 10 Straight Lines explore various topics such as slope, general formulae of the slope, angle between different slopes, etc. These topics are crucial for solving all geometry questions. The formulae mentioned by subject matter experts need to be practised for a good score in your exams. 

What is a Straight Line?

A straight line is the shortest distance between two points and can be defined as a line drawn up by the points travelling in a constant direction with zero curvature. 

General Form of a Line

The relation between variables such as x and y agrees with all points on the curve.

The general form of the equation of a straight line is :

Ax + By + C = 0

where, A, B, and C are constants and x, and y are variables.

Slope of a Line

Tan θ is the slope of a line if θ is the gradient of point L. The line whose inclination is not equal to 90 degrees is said to have a slope. Slope is given by M.

M = tan θ, where θ ≠ 90°

The slope of the x-axis is 0 if the slope of the y-axis is not defined.

Slope Intercept Form

The slope intercept form of a straight line is given by 

Y = mx +C

Where m is the slope and C is the y-intercept.

Shortest Straight Line Distance

If there are two points P and Q having coordinates (P1, Q1) and (P2 , Q2)

Then, the shortest straight line distance is given by :

PQ = (P1  Q1)2 + (P2 – Q2)2

The topics included in Class 11 Mathematics Revision Notes for Chapter 10 Straight Lines are given below :

  • The slope of a line
  • The slope of a line when coordinates of any two points on a line are given
  • Conditions of perpendicularity and parallelism of lines in terms of their slopes
  • The angle between two lines
  • Collinearity of two points
  • Different forms of the equation of a line
  • General equation of a line
  • Different form straight line equation
  • The distance of a point from a line
  • Distance between two parallel lines

FAQs (Frequently Asked Questions)

  • Extramarks presents its notes in clear and structured language from the NCERT textbooks of Class 11. 
  • These notes are necessary for a quick overview of the chapter right before your exams.
  • The option to easily download the Revision Notes for Chapter 10 Straight Lines by Extramarks makes it an efficient part of your exam preparation strategy.