Question

Maria created a graph of B(t), the temperature over time. For the interval between t = 3 and t = 7, the average rate of change in her graph of B(t) is 8. Which statement must be true?

Answer 1

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Step-by-step explanation:

C) The temperature was 32 degrees higher when t = 7 than when t = 3.

Answer 2

For some strange reason, I'm not able to find the units of the '8'
at the end of the question, or the answer-choices after that.

It seems to me that the only thing we can tell with the given
information is that the temperature at t=7 was 32° warmer
than the temperature at t=3 .