Write and then solve for y = f(x) the differential equation for the statement: "The rate of change of y with respect to x is inversely proportional to y^4"

So dy/dx=k/y^4

(y^4)dy=(k)dx

Integrate

y^5/5=kx+C

Is this the final answer or is there more?

looks good to me.

or, you could say
y = 5kx+c
using a different c.

The expression you obtained, y^5/5 = kx + C, is indeed the solution to the differential equation you provided. However, it is always a good practice to check your answer and simplify it if possible.

To simplify the expression, you can multiply both sides of the equation by 5, resulting in y^5 = 5(kx + C). This yields the final simplified form of the equation.

Therefore, the final answer to the differential equation is y^5 = 5(kx + C).