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A line L is perpendicular to the line `(2)/(3)x + (5)/(7)y=1` Given that L passes through (4, l l), Find: (a) Gradient of `L_1` (l mark) (b) Equation of L in the form y = mx + c, where m and c are constants. (2 marks)
KCSE 2017 paper 1 question 7.