Line Through a Point Parallel to a Given Direction
## Formula
For point $$(x_1,y_1)$$ and direction ratios $$a:b$$:
$$\frac{x-x_1}{a}=\frac{y-y_1}{b}$$
## Usage
- Used when the direction of the required line is known.
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CAT Formulas
Straight Lines
Line Through a Point Parallel to a Given Direction
Line Through a Point Parallel to a Given Direction
## Formula
For point $$(x_1,y_1)$$ and direction ratios $$a:b$$:
$$\frac{x-x_1}{a}=\frac{y-y_1}{b}$$
## Usage
- Used when the direction of the required line is known.
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