Question

Anderson has a phone plan that charges a monthly rate of $50 for the first 1,000 minutes plus $0.25 for each additional minute. Which of the following functions models Anderson's plan for all m > 1,000, with m as the number of minutes per month and f(m) as the monthly charge?
A. f(m) = 0.25m
B. f(m) = 0.25m + 50
C. f(m) = 0.25m - 200
D. f(m) = 0.25m - 950
E. f(m) = 0.25 m + 1,000

Answer 1

The answer is B. f(m)= 0.25m +50

Anderson is being charged a monthly rate: +$50
If he goes over 1,000 minutes (m) he will be charged for each minute 25 cents
Let's say he does go over, he charged for every minute he goes over in addition to the minutes he's billed for so..

.25(# of minutes over 1,000) + monthly rate $50

Answer 2

It's actually C