The number of teams who entered in a 3-on-3 charity basketball tournament can be modeled by function T, where x is the number of
years since the tournament first started. T(x)=4x+24
The entry fee paid by each team to enter the tournament can be modeled by function F, where x is the number of years since the tournament first started.
F(x)=5x+45
Which function, R, best represents the total entry fees collected in the xth year since the tournament first started?
The revenue, R(x) is the product of the number of teams who entered the tournament, T(x), times the entry fee paid by each team, F(x); then you can write:
Thus you must multiply the two functions (polynomials):