How is Gary Edwards Algebra grade a symbol for Bissingers purposes for writing Friday Night lights?

In the book "Friday Night Lights: A Town, a Team, and a Dream" by H.G. Bissinger, the character Gary Edwards serves as a symbol for the larger issues facing the town of Odessa, Texas. Edwards is a high school student and football player who struggles with both football and academics, particularly in the subject of algebra. His struggles with algebra reflect the larger issues of poverty and a lack of educational opportunities in the town, which Bissinger uses to illustrate the challenges facing the community. Additionally, Edwards' academic struggles also symbolize the pressure and expectations placed on the football players by the town to succeed on the field, while neglecting their education.