Question

In a rectangular coordinate system a positive point charge q=6.0 nC is placed at x= 0.15m,y=0, and identical point charge is placed at x=-0.15m, y= 0. Find the x and y components, the magnitude and direction of the electric field at the following ponts a.) the origin B.) x=0.300 m, y=0 c.) x=0.15m, y=-400m