physcis question

hi, please could i have some help on this question? does the graph on page 12 show the resultant electric field strength, when you add E at A and B?
paper: https://www.physicsandmathstutor.com/pdf-pages/?pdf=https%3A%2F%2Fpmt.physicsandmathstutor.com%2Fdownload%2FPhysics%2FA-level%2FPast-Papers%2FCAIE%2FPaper-4%2FQP%2FJune%202019%20(v1)%20QP.pdf
is it fair to say, electrical field strength is weaker moving away from A and then 0 at 10cm, then stronger towards B?
thanks!

The graph does show the resultant electric field strength between A and B.
E_total = E_A - E_B
Electric field strength is a vector quantity so the magnitude decreases moving away from A then 0 at 0cm and increases but in the opposite direction towards B.