- (D) When y = 2t = 4, we have t = 2, so the line passes through point F(2) = (5,4).
Also so at t = 2 the slope of the tangent line is
An equation for the tangent line is y − 4 = ln 2(x − 5).
Also so at t = 2 the slope of the tangent line is
An equation for the tangent line is y − 4 = ln 2(x − 5).