# HSC Higher Mathematics 1st Paper Note 3rd Chapter Straight lines

HSC Higher Mathematics 1st Paper Note 3rd Chapter Straight lines. Coordinate Geometry is the unification of algebra and geometry in which algebra is used in the study of geometrical relations and geometrical figures are represented by means of equations. The most popular coordinate system is the rectangular Cartesian system. Coordinates of a point are the real variables associated in an order to describe its location in space. Here we consider the space to be two-dimensional. Through a point O referred to as the origin, we take two mutually perpendicular lines XOX’ and YOY’ and call them x and y-axes respectively. The position of a point is completely determined with reference to these axes by means of an ordered pair of real numbers (x, y) called the coordinates of P where |x | and | y | are the distances of the point P from the y-axis and the x-axis respectively, x is called the x-coordinate or the abscissa of P and y is called the y-coordinate or the ordinate of the point P.

## HSC Higher Mathematics 1st Paper Note 3rd Chapter Straight lines

What is the general form of a pair of straight lines? What is the condition to find the equation represent a pair of straight lines? The formula to find the angle between a pair of straight lines. What is the condition to prove whether the pair straight lines are perpendicular or parallel? How to find the distance between them. How to find separate equations from the given pair of straight lines 123 Views Â· View Upvoters. Where can I download RD Sharma class 11 maths FREE? Is class 11 CBSE maths really very difficult? Which book is good for maths class 11? What book should I use in class 11 maths CBSE? Is CBSE class 11 and 12 maths tough? Is class 12 maths related to class 11? How is math in CBSE class 11 and 12? What are the passing criteria for maths in class 11? Is it important to score good marks in class 11? Is it important to pass in maths in class 9? What basics of maths are important for physics from class 11? How can I clear my basic concept of class 11?

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