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The gradient of the line passing through A (4, k) and B (7, -5k) is -2. Find the value of k and coordinate of A and B
k = 1; A (4, 1) & B (7, -5)
Find the gradient of the line passing through each pair of A (2, 8) and B (7, 18)
m = 2
Find the gradient of the line passing through each pair of C (-5, 4) and D (1, -14)
m = -3
Find the gradient of the line passing through each pair of K (a, 12a) and L (7a, 36a)
m = 4
