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Equation of a Line Using Direction Ratios
## Formula
A line through $$(x_1,y_1)$$ with direction ratios $$a:b$$ is:
$$\frac{x-x_1}{a}=\frac{y-y_1}{b}$$
## Usage
- Used when a point and direction ratios of a line are known.
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Equation of a Line Using Direction Ratios
## Formula
A line through $$(x_1,y_1)$$ with direction ratios $$a:b$$ is:
$$\frac{x-x_1}{a}=\frac{y-y_1}{b}$$
## Usage
- Used when a point and direction ratios of a line are known.
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