The only way I know to do this is to use the formula from calculus for the arc length...and you will need to look that up and apply it.
Also do you really mean y=3/(4x)?

Paul M.
tutor
The region is more/less triangular with 2 straight sides. You only need the arc length of the cubic between the intersection of y=(3/4)x & the cubic up to the y-axis. OK?
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01/29/19
Tyler P.
If you do use the arc length formula then what would the dy/dx be for this problem since there are two curves? and it is (3/4)x01/28/19