A phone service charges 3.1 cents per minute for the first 30 minutes and 6 cents per minute thereafter.
(a) Write this information in the form of a simplified piecewise-defined
function and state the effective domain for each piece.
(b) Sketch the graph.
(c) Find the cost of a 48-minute phone call.

Question

Quizplus · Accepted Answer

The Answer of A phone service charges 3.1 cents per minute for the first 30 minutes and 6 cents per minute thereafter.
(a) Write this information in the form of a simplified piecewise-defined
function and state the effective domain for each piece.
(b) Sketch the graph.
(c) Find the cost of a 48-minute phone call.

A Phone Service Charges 3