A student is saving money for a new laptop. The amount of money, in dollars, the student has saved can be modeled by the function , where is the number of weeks since they started saving. Which of the following is the best interpretation of the number 50 in this context?
The amount of money the student saves each week
The initial amount of money the student had saved
The total cost of the laptop
The number of weeks it takes to save for the laptop
