5 The equation of a curve is such that \(\frac { \mathrm { d } y } { \mathrm {~d} x } = 4 x - 3 \sqrt { x } + 1\).
- Find the \(x\)-coordinate of the point on the curve at which the gradient is \(\frac { 11 } { 2 }\).
- Given that the curve passes through the point \(( 4,11 )\), find the equation of the curve.
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