Francisco and Bernardo, two castle guards in Elsinore, Denmark, stand alert on the castle steps at night. This is part of the plot’s exposition.
climax.
falling action.
resolution.

"elizabeth proctor has been seen in numerous lights by the end of the second act of the play.  the only impressions that we get of her from the first act are those given by other people.  abigail obviously doesn't have a very good impression of elizabeth, and if we believe what she says, we will think that elizabeth is cold, gossipy, cruel, dishonest and unmerciful." 

The answer is f(x)=7ex