91- 6303239042
Collinearity Through Slopes
## Formula
Three points $$(x_1,y_1)$$, $$(x_2,y_2)$$ and $$(x_3,y_3)$$ are collinear if:
$$\frac{y_2-y_1}{x_2-x_1}=\frac{y_3-y_1}{x_3-x_1}$$
## Usage
- Used to test collinearity when the relevant denominators are non-zero.
