Question

Roderick has an Internet service that charges by the hour. This piecewise function shows the cost of the Internet service based on the number of hours that Roderick uses

the Internet.
when x 34
10
(10 + 2.50(x-4)
when x > 4
Last month, Roderick used the Internet for 7.5 hours. What was he charged?
Helppppp Plssssssss

Answer 1

18.75 is the answer

Explanation:

since the internet usage is more than 4 hrs, the second equation will be used. that is

cost = (10 + 2.50 (x - 4)) where x is the usage hours.

thus

`cost = 10 + (2.5 * (7.5 - 4)) \\ = 10 + (2.5 * 3.5) \\ = 10 + 8.75 \\ = 18.75`