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maths equation of the line formula. A line is expressed as the intersection of two planes that is as the solution set of a single linear equation with values in or as the solution set of two linear equations with values in. Graph the line a y - 3 -2x 4 b y 3 12 x - 1.
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If there are two points say x1 y1 and x2 y2 and only one line passes through them then the equation of the line is given by. Equation of a Straight Line The equation of a straight line is usually written this way. If you know two points that a line passes through this page will show you how to find the equation of the line.
The point-slope form of a line provides a formula that is useful in finding the slope of a line from an equation and a point the line passes through.
Each Formula is explained in brief below. Similarly equation of a straight line which is vertical or parallel to Y-axis is x a where a is the x -coordinate of the points on the line. Equation of Line Formula. If you dont know the y-intercept or the equation for the line you can use two points to define the equation of the line using the point-slope formula.
