Straight line graphs

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5 Terms

1
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Equation of a straight line

y - y1 = m(x - x1)

2
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Gradient of two parallel lines

Same gradient

3
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Perpendicular gradient

-1/m

4
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Product of gradient of two perpendicular lines

-1

5
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Distance between 2 co-ordinates

√((x2 - x1)2 + (y2 - y1)2 )