Consider the curve
\[
y=\frac{1}{3} x^{3}+\frac{1}{4 x}, x \geq 1
\]
1) Graph the curve provided above.
2) Find the arc length function for this curve starting with the point \( x \geq 1 \).
3) Graph the arc length function.
4) On the same figure, graph the function provided as well as the arc length function.
5) Write your observation about the obtained result.