Fill in the blank john hosts an art workshop on the weekends. he has an average of 14 students in each session and charges a fee of $12 per session. he estimates that for every $2 increases in the fee, the average number of students reduces by 1. complete the equation that models this scenario, where c(x) is the revenue generated and x is the number of $2 fee increases. c(x) = __ x2 + __ x + __

Now, we know that he's charging $12 per session to each of his students, and he has 14 students currently, so his revenue is just 14 * 12 or 168 bucks.

now, let's take a peek as the session price goes up in jumps of 2, from 12, to 14, 16, 18 and so on, as each jumps happen, the students drop by 1, from 14, to 13, to 12 and so on.



notice, the revenue starts off at 168, goes up up, reaches 200 bucks and then starts to drop back down.

thus, that means the U-turn or vertex of that revenue function is at 4,200, namely h = 4, and k = 200

There is 240 red cars and there is 400 blue cars because 240/3=80 and 80*5=400