Class 11th Mathematics, Straight Lines
Angle Between Two Lines
1. Statement of the Concept The angle between two straight lines is defined as the acute angle between their directions…
Straight Lines
Class 11th Mathematics, Straight Lines
Parametric Form or Distance Form
1. Statement of the Concept The parametric form of a straight line represents the equation of a line: passing through
Class 11th Mathematics, Straight Lines
Normal Form or Perpendicular Form
1. Concept Overview The normal form of a straight line expresses the equation of a line in terms of: The
Class 11th Mathematics, Straight Lines
Example – Find the Slope and Express Equation in Intercept Form
Practice Questions with Step-by-Step Solutions Question 1. Find the slope of the line given by [y = 3x − 7].
Class 11th Mathematics, Straight Lines
Slope From the Equation of a Straight Line
1. Concept Overview The slope (gradient) of a straight line represents its inclination, i.e., how steep the line is and
Class 11th Mathematics, Straight Lines
Example – Intercept Form
Practice Questions with Step-by-Step Solutions Question 1. Find the equation of the line which cuts off intercepts 5 on the
Class 11th Mathematics, Straight Lines
Equation of a Straight Line – Intercept Form
1. Concept Overview The intercept form of a straight line is used when: The x-intercept and The y-intercept of the
Class 11th Mathematics, Straight Lines
Equation of a Straight Line – Point Slope Form
1. Concept Overview The point–slope form of a straight line is used when: The slope of the line is known,
Class 11th Mathematics, Straight Lines
Equation of a Straight Line – Slope Intercept Form
1. Concept Overview The slope–intercept form of a straight line is used when: The slope of the line and The
Class 11th Mathematics, Straight Lines
Equation of a Straight Line – Two Point Form
1. Concept Overview When two distinct points on a straight line are known, we can uniquely determine the equation of
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