Pure Year 1 Unit 5 Flashcards

1
Q

formula for m

A

(y2 - y1) / (x2 - x1)

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2
Q

formula for finding equation of a straight line

A

y - y1 = m(x - x1)

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3
Q

What do parallel lines have that are the same?

A

gradient

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4
Q

How are the gradients of two perpendicular lines found?

A

There gradients will multiply to make -1

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5
Q

How to find length of straight line between two points?

A

Pythagoras’ formula

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