Condition for Intersection of Two Lines
## Formula
Two lines:
$$A_1x+B_1y+C_1=0$$
and:
$$A_2x+B_2y+C_2=0$$
intersect at a unique point if:
$$A_1B_2-A_2B_1\ne0$$
## Usage
- Used to determine whether two lines have a unique point of intersection.
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CAT Formulas
Straight Lines
Condition for Intersection of Two Lines
Condition for Intersection of Two Lines
## Formula
Two lines:
$$A_1x+B_1y+C_1=0$$
and:
$$A_2x+B_2y+C_2=0$$
intersect at a unique point if:
$$A_1B_2-A_2B_1\ne0$$
## Usage
- Used to determine whether two lines have a unique point of intersection.
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