SOLUTION: Confused. Does this mean he did not deposit anything initially? Marty opened a savings account to deposit a portion of his monthly salary. Without considering interest earned,

Question 1079459: Confused. Does this mean he did not deposit anything initially?
Marty opened a savings account to deposit a portion of his monthly salary. Without considering interest earned, his savings account is modeled by the function f(x) = 300x + 500. How much money did Marty initially deposit?
a)$0
b)$300
c)$500
d)$800
Found 2 solutions by Boreal, solver91311:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Initial deposit here means when x=0, and when that is the case the initial deposit is $500.
C.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

You aren't very forthcoming about what your function means, but it looks like the variable represents the number of months that the savings account has been open and the value of the function for any given input is the amount of money in the savings account. The initial amount would be the value of the function when zero months had elapsed, so:

Do the arithmetic.

John

My calculator said it, I believe it, that settles it

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