The equation \(-3.75 \times 4 = -15.00\) represents the total loss from Eric's investment account over the 4 weeks, where \(-3.75\) is the loss each week and \(4\) is the number of weeks.
So, \(-15.00\) in the equation represents the total loss in value over the 4 weeks.
The correct answer is:
B. The loss in value was $15 over 4 weeks.