Answer:
vectorA x vectorB = -1
Explanation:
It is often necessary to know if two lines are parallel or perpendicular. m1 × m2 = -1
the gradient of the first line times the gradient of the second line (perpendicular to the first) is equal to -1
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Answer:
vectorA x vectorB = -1
Explanation:
It is often necessary to know if two lines are parallel or perpendicular. m1 × m2 = -1
the gradient of the first line times the gradient of the second line (perpendicular to the first) is equal to -1