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Maths FROM 2
Chap6: coordinate geometry
Gradient of a lineFrom the graph below, the gradient of the straight line can be written as follows
Y2
B(x2, y2)
y1
A(x1, y1)
x1 x2
Gradient = y2-y1x2-x1
Ex: find the gradient of the points (-1, 2) and (3, -4)
Solution: grad = y2-y1x2-x1
= -4-23--1
= -3/2
par Claude Foumtum