Question

The equation that models this situation is y = 50x + 75, where y is the amount of money in the account and x is the number of deposits.What does the y-intercept mean in this situation?

Answer 1

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.

Therefore, when x=0, it represents initial amount in account.

And initial amount in account is $75.