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A-Level Maths Edexcel 9MA0
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#1 Calculate gradient of a line joining two points
Use
m
=
y
2
−
y
1
x
2
−
x
1
m = \dfrac{y_2-y_1}{x_2-x_1}
m
=
x
2
−
x
1
y
2
−
y
1
.