trajectories of bp over time and annualized slopes

Hi all,

First, I would like to apologize because my question is probably a general question of biostatistics but I use to program on STATA and I absolutely need to have an advice. I am a little bit desperate
I work on hypertension in a database with repeated measures of blood pressure every year.

I have been asked to "compute the trajectories of systolic blood pressure change using annualized slopes of the repeated measures of SBP together with the variability in SBP between visits".

I don't really understand what this sentence means by trajectories and annualized slopes.

Could you please help me to better understant what I am supposed to do?

Thank you so much +++ for your help.