Question 5 - A-Level Maths

5 A curve has parametric equations \(x = 1 + u ^ { 2 } , y = 2 u ^ { 3 }\).

Find \(\frac { \mathrm { d } y } { \mathrm {~d} x }\) in terms of \(u\).
Hence find the gradient of the curve at the point with coordinates \(( 5,16 )\).