Mathematics · essential
Two-point form of line for JEE
Straight line: Various forms of equations of a line, intersection of lines, angles between two lines
Formula
\(\dfrac{y-y_1}{x-x_1}=\dfrac{y_2-y_1}{x_2-x_1}\)
Variables: Line through \((x_1,y_1)\) and \((x_2,y_2)\).
Conditions: \(x_1\ne x_2\); otherwise line is \(x=x_1\).
Equation from two points.