In my district while students can take Algebra as early as 7th grade, they do not get "High School" credit for math classes taken in junior high. These classes do not go on their High School transcript.
The classes taken before HS will not get in HS transcript but they do get credits toward graduating HS.
What does this mean? Most college bound students at our H.S. have way more "credits" towards graduating than they need. Unless you are aiming to for your daughter to graduate a year early. (Something I did myself.) The number of H.S. credits doesn't really matter.
I'm going to start a new thread about math acceleration & Common Core. Common Core brings a lot of changes, you really should check into how this fits into things before advocating for change.