Parallel And Perpendicular Flashcards by Tilly Rumsey | Brainscape

Q

What do parallel lines have?

A

Same gradient

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Q

What are perpendicular lines to each other?

A

Negative reciprocals of each other with a product of -1

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Q

How do you calculate gradient?

A

Change in y/change in x
OR
y2-y1/x2-x1

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