Value of the y-intercept of the graph of f(x) = e1–x – 1?

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

Graph the equationy= x+3[tex]y = x + 3[/tex]