Suppose F(x,y)=(5x-y)i+xj.

(a) Find a vector parametric equation for the line segment from the origin to the point (2,4) using t as a parameter.
(b) Find the line integral of F along the line segment from the origin to (2,4).
(c) Find a vector parametric equation for the parabola y=x² from the origin to the point (2,4) using t as a parameter.
(d) Find the line integral of F along the parabola y=x² from the origin to (2,4).