Question

2 use the following to answer questions 9-10. A cell phone company offers a texting only package. They charge $19 for a texting plan that comes EX , warth 250 text message a month. If you go over the 250 text messages it costs $0.10 per additional text message. They also offer an unlimited texting plan for $50 a month. If x represents the number of text messages, and c(x) represents the cost of the messages, express c(x) as a piecewise function. 10. If you usually send 500 texts a month which plan would be the best plan to sign up for?

Answer 1

Qs 9 . No of text Messages = x , Cost of text messages = c(x)

c(x) = $19+(x)*.1

Qs 10 . The first plan would be better if it is usually 500 text messages per month compared to flat $50 per month.

Total Cost = 250 messages + (Additional Message)*$0.1

= $19+ $(250*0.1) = $44. It is cheaper than flat $50 plan.