Question

please help will give medal. question attached

Answer 1

I'm guessing its C

Answer 2

@nexon thanks

Answer 3

@lolWe4ever thanks also

Answer 4

That would be an incorrect guess, in my opinion.

Answer 5

"for any minutes over 300" is the key phrase...

Answer 6

@whpalmer4 so what do you think?

Answer 7

If you evaluate the piecewise function in C, you will find that it is not continuous at 300 minutes.

Answer 8

look at the charges for 301 minutes and find the answer choice that gives you the right answer. It isn't C.

Answer 9

Trust me, there would be a lot of angry customers if C represented how the pricing worked! Here's a graph of C:

Answer 10

@whpalmer4 i picked b and it says the answer was c im confused

Answer 11

Well, someone screwed up when they picked the right answer. If you use 301 minutes, and are charged $0.39 for each minute over 300 minutes as "For any minutes over 300, Andrew is charged $0.39 per minute" implies, your bill will be $19 + $0.39(301-300) = $19.39. If you use C to compute it, for 301 minutes, the bill would be $19 + 301*$0.39 = $136.39. That extra minute is pretty darn expensive!

Answer 12

@whpalmer4 okay thanks for trying to help though

Answer 13

I didn't just try :-)

B is the correct answer, no matter what your system says.

Answer 14

@nexon You picking c isn't much help, you should explain why you picked it. @whpalmer4 made a clear point on why it's B, and I see no wrong in his answer.