BRAINLY!!!!!!!!!!! PLEASE HELP

Two friends are trying to get the best deal on streaming service for movies. John chooses to sign up with Soupstream Streaming Service, which requires a one time sign up fee of $20 and charges 50 cents per movie watched. His friend Matt chooses Mo'data Streaming Service, because it has no sign up fee. However, the Mo'data Service charges $3 per movie.

Explain what the vertical intercept means in the context of this situation, and discuss at least one way the linear model doesn't fit the actual streaming service plan