We are given equation y = 50x + 75.
Where y is the amount of money in the account and x is the number of deposits.
y-intercept is the point on y-axis where x=0.
x represents the number of deposits.
When number of deposit is 0 that means there is no any deposit the x value would be 0.
So, when x=0, we get
y = 50x +75
= 50(0)+75
= 0+75
=75.
