I have to find line integral for $\displaystyle F = [y^3, x^3]$ , $\displaystyle C$ the parabola $\displaystyle y=5x^2$ from $\displaystyle A: (0,0)$ to $\displaystyle B(2,20)$.

I have made the parametric equations to be $\displaystyle x=t$ and $\displaystyle y=5t^2$. What I dont understand is that in order to integrate I need just one value of a and b , i.e. the limits. How do I chnage the A and B coordinates in the form of limits ?