Find equations of the tangents to the curve x=3t^2+1, y=2t^3+1 that pass through the point (4,3).
The Attempt at a Solution
I was able to find the equation y=x-1 as a tangent line through the point (4,3) for the part of the curve above the x-axis since (4,3) is on the curve.
However, I do not know how to find the equation of the tangent for the part of the curve below the x-axis since I do not know what point on the curve the tangent passes through and therefore do not know the t value.
Any help is appreciated, thanks