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?
The temperature was 8 degrees higher when t = 7 than when t = 3.
The temperature was 8 times higher when t = 7 than when t = 3.
The temperature was 32 degrees higher when t = 7 than when t = 3.
The temperature was 2 degrees higher when t = 7 than when t = 3.

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?
The temperature was 8 degrees higher when t = 7 than when t = 3.
The temperature was 8 times higher when t = 7 than when t = 3.
The temperature was 32 degrees higher when t = 7 than when t = 3.
The temperature was 2 degrees higher when t = 7 than when t = 3.

anonymous · Answer

Will give Medal and follow

anonymous · Answer

the rate of change (average) is 8, we can assume that it is 8 in this question, hence the difference between t=3 and t=7 is (7-3)*8=32. So the 3rd statement is true :)