Question

A telephone company offers a monthly cellular phone plan for 29.99. it includes 300 anytime minutes plus 0.25 per minute for additional minutes. the following function is used to compute the monthly cost for a subscriber, where x is the number of anytime minutes used. compute the monthly cost of the cellular phone for use of the following anytime minutes.

Answer 1

a)

The given function is a piecewise function and x represents the number of anytime minutes.

For minutes less than or equal to 300, the function representing the cost is

C(x) = 29.99

For C(190), number of minutes or x is less than 300. Thus,

C(190) = 29.99