Javier begins to save for a new bicycle that costs $415. he already has $140 and plans to save $25 per week. let w represent the number of weeks he has been saving and s(w) represent the total amount in dollars that he has saved. how long does he have to save to buy the bicycle?

a. give the slope and the y-intercept of the function.

b. write a linear function using the given information.

c. describe how to use the function to answer the question, and then answer the question.