http://talk.collegeconfidential.com/what-my-chances/2094201-am-i-only-restricted-to-uc-schools-now.html suggests that you started high school taking algebra 2. Did you take geometry in middle school and include it in your course list? UC wants to see an actual geometry course in your record.
Are all of your courses correctly classified according to the listing for your high school at https://hs-articulation.ucop.edu/agcourselist ?