Line Through a Point Perpendicular to a Given Direction
## Formula
For point $$(x_1,y_1)$$ and given direction $$(a,b)$$:
$$a(x-x_1)+b(y-y_1)=0$$
## Usage
- Used when the required line must be perpendicular to a specified direction.
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CAT Formulas
Straight Lines
Line Through a Point Perpendicular to a Given Direction
Line Through a Point Perpendicular to a Given Direction
## Formula
For point $$(x_1,y_1)$$ and given direction $$(a,b)$$:
$$a(x-x_1)+b(y-y_1)=0$$
## Usage
- Used when the required line must be perpendicular to a specified direction.
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