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?  Choose the correct choice from the following answers.
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) = 0.25m + 1,000
For m &gt; 1,000 — that is, beyond 1,000 minutes of usage — the plan charges a usage fee   based on the number of minutes used plus a flat rate of $50. With this information, you can   create the following function:   f(m) = Usage fee + 50   The usage fee is $0.25 per minute; however, the first 1,000 minutes are already paid for. So   the usage fee is 0.25(m – 1,000). Plug this value into the preceding function and simplify:   f(m) = 0.25(m – 1,000) + 50   f(m) = 0.25m – 250 + 50   f(m) = 0.25m – 200   correct answer f(m) = 0.25m – 200)f(m) = 0.25m – 200
<result>C</result>
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?