Cheyanne is saving for a car. the amount she has saved for the car, f(x), can be represented by the function f(x) =65x+750, where x is the number of weeks she has saved. suppose 750 changed to 700. what does this mean in the context of the problem?

a. changing 750 to 700 means the initial amount she has saved decreased
b. changing 750 to 700 means the initial amount she saved increased
c. changing 750 to 700 means the amount she saves each week decreased
d. changing 750 to 700 means the amount she saves each week increased