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Find the gradient of the line passing through the points \((...

Find the gradient of the line passing through the points (12,13)and(3,23)

A.

25

B.

52

C.

27

D.

72

Correct answer is A

Gradient(slope) m = y2y1x2x1

the points are  (12,13)and(3,23)

m = 23(13)312

23+13312

= 1÷52 = 1×25           

Therefore, m = 25