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ANALYTIC GEOMETRY - Coggle Diagram

- - - - -8+16/2 =4
- - - - For acute angles tanθ is positive and for obtuse angles tanα is negative.
- - - - y-y₁=m(x-x₁)
        
        2) Equation of a Line in Two Point Form
        
        Equation of the line with two points A( x₁, y₁) and B (x₂, y₂) on the line is:
        
        y-y₁ / x-x₁= y₂-y₁ / x₂-x₁