Question is:

A particle is moving along the curve whose equation is:

xy^3 = 8(1+y^2)/5

and the x-coordinate is increasing at a rate of 6 units/s when the particle is at the point (1, 2).

1. At what rate is the y-coordinate changing at that instant

2. Is the particle rising or falling at that instant?

Could you explain me with answers plzz

Thank you..