Whats the answer for this?

How do you find the area of this triangle.

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2