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Mathematics

The graph at left models the monthly bill, m, in dollars, that a particular video hosting company charges a customer who uses t terabytes of bandwidth. What is the best interpretation of the average rate of change between 10 and 35 terabytes in this context?

A.The average amount the company charges each month is about $91 per terabyte up to the tenth terabyte.
B.The average amount the company charges each month is about $110 per terabyte up to the tenth terabyte.
C.The average amount the company charges each month is about $91 per terabyte after the tenth terabyte but before the thirty-fifth.
D.The average amount the company charges each month is about $110 per terabyte after the tenth terabyte but before the thirty-fifth.

答案和解析

答案：C

解析：

Option C is correct.