How do you write an equation of a line given point (0,-4) and (5,-4)?
If we notice that the Y-co-ords. of given two pts. thro. which line passes are same, the eqn. can immediately be written as
This behaviour of pts. on a line occur, when and only when, the line is Horizontal , i.e., line
Otherwise, we may use the formula for the eqn. of a line passing thro. pts.
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