Steve invests in a circus production. The cost includes an o…

Steve invests in a circus production. The cost includes an overhead of​ $80,000, plus production costs of​ $4,000 per performance. A​ sold-out performance brings in​ $12,000. Let x represent the number of​ sold-out performances and write the linear profit function​,​ P(x).

Brittany’s collection of beanie babies was worth $2,003 in 1…

Brittany’s collection of beanie babies was worth $2,003 in 1994. By 1997 it had grown to $2,636. Let f(x)  be the value of the investment in the year, x, where x = 0 represents 1994.  Write a linear equation that models the value of the investment in the year x.