The slope would be 15 because it is a rate of $15 **per** week.
The y-intercept would be 50 since she is starting with $50 at 0 weeks (the very beginning).
a is the total amount of money she’s saved and w is the weeks so the linear equation is:
a = 15x + 50
Hope this helps! Lmk if you need me to explain more.
