Lilly wants to determine the association between her deposits and her savings account balance. She modeled the equation y = 75x + 100 for the line of best fit. The independent variable, x, is deposits and the dependent variable, y, is account balance. What does the y-intercept mean in this context?

Responses
A The starting savings account balance is $75.The starting savings account balance is $75.
B The starting savings account balance is $100.The starting savings account balance is $100.
C The account balance increases by an additional $75 for each deposit.
The account balance increases by an additional $75 for each deposit.
D The account balance increases by an additional $100 for each deposit.

B The starting savings account balance is $100.