Below is an email from the school administration about the way to get the reduced price for AP exams. Note that the deadline is Sept. 19, 2018.
AP Exam Fee Reduction Initiative
SJUSD is asking all families, regardless of income to complete the
Free-Reduced Price Meal Application. When families complete the FRPM
application, the cost of any Advanced Placement (AP) exam will be
reduced to $5, again regardless of income. To be eligible for this
program, the application must be submitted by Wednesday, September 19, 2018. The application can be completed online at https://nutrition.sjusd.org. 