A user is charged php300 monthly for a particular mobile plan, which includes 100 free text messages. Messages in excess of 100 are charged php1 each. Represent the amount as a function of the number of messages m sent in a month.expressed by the piecewise function.

Answer 1

cost = {300 , m ≤ 100
= 300 + 100(m-100) , m> 100} , where m is the number of messages.

rewrite the piecewise function in the way you were taught.

Answer 2

Your cellphone plan costs Php 750 per month which includes free 500 texts. For every text message in excess of the 500 included in the plan, you are charged 10 centavos. Represent this into a function in equation form. *