Y=-3x+3/4 what is the slope and y intercept

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

Given the graphed function below which of the following orders pairs are found on the inverse function

Which graph represents the linear function below? y-4= (4/3)(x-2)