Option D
Function used to determine the profit the theater group earns from selling "x" tickets is f(x) = 12.50x - 150
Given that a theater group charges $12.50 per ticket for its opening play of the season
Also given that Production costs for the play are $150
To find: function used to determine the profit the theater group earns from selling "x" tickets
So "x" represents the number of tickets sold
Cost per ticket = $ 12.50
[tex]\text { cost of "x" tickets }=" x " \times \text { cost per ticket }[/tex]
[tex]\text { cost of "x" tickets }= x \times 12.50=12.50x[/tex]
Production costs = 150
Then the profit the theater group earns from selling "x" tickets is:
Profit earned from selling "x" tickets = cost of "x" tickets - production cost
Let f(x) denotes profit earned from selling "x" tickets
f(x) = 12.50x - 150
Thus option D is correct