Math

So now in Michigan to graduate from high school every student must have 4 credits of math including Algebra 1, Geometry and Algebra 2, and must take a math in their senior year.  Legislation passed in the state senate reads like this:  4 credits of math including Algebra 1, Geometry and Algebra 2 and a math senior year which can include repeating Algebra 2.  I don't get it because if you fail Algebra 2 the first time, which would be the only reason I can think of to take Algebra 2 again, then you did not get the credit, so repeating the class your senior year still only gives you three credits of math, which means you don't graduate.  If  you pass Algebra 2, why would you take it again?  So I thought about this; maybe you want to improve  your grade for future success?  Unlikely because if it was that hard the first time, and you squeaked by with a D-,you are not going to subject yourself to that torture again.  Then it dawned on me!  What are the choices for math in your senior year if you took the sequence as the uneducated politicians think all students should?  Really hard stuff!  So if you really struggled but made it through Algebra 2, now the state will allow you to repeat that struggle because the alternative is to take something even harder that you probably won't pass!  And I thought they just didn't get it!  Thanks for listening.
Rosemary