Students are suppose to have access to the book online via your LAUSD email address.  Here is what LAUSD tells me:

 

Go to: https://www.bigideasmath.com/LAUSD/

 

Log in with your LAUSD SSO using your full email address and password (ex: student login - [email protected]).  All students are suppose to have these email addresses, but I don't know if or how many know about them (or remember them).  I have not been able to test this, since I don't have a student ID/email.  If you try it, please email me with your results.