Tangent equation () A. y=x-1B. y=3x-3C. y=-x-1D. y=3x+1
∵ point (1,0) is on function y = ln (3x-2) ∵ the derivative of function is f ′ (x) = 33x − 2, when x = 1, f ′ (1) = 3, then the slope of tangent is k = f ′ (1) = 3, ∵ straight line passing through point (1,0) ∵ tangent equation is y-0 = 3 (x-1), that is y = 3x-3, so select: B
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