Question

A sports trainer has monthly costs of $65. 94 for phone service and $42. 23 for his website and advertising. In addition, he pays a $30 fee to the gym for each session in which he trains a client. Write a cost function to represent the C(x) for x training sessions. C(x) =

Answer 1

x = training sessions

$30 for each session (x) (independent variable)

$65. 94 and $42. 23 for monthly costs (fixed variable)

C(x) = 30x + (65.94+42.23)

C(x) = 30x + 108.17

Answer 2

C(x) = 30x + 108.17

Hope this helps!