Question

TIME REMAINING
56:41
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

A. The temperature was 8 degrees higher when t = 7 than when t = 3.
B. The temperature was 8 times higher when t = 7 than when t = 3.
C. The temperature was 32 degrees higher when t = 7 than when t = 3.
D. The temperature was 2 degrees higher when t = 7 than when t = 3.

Answer 2

Thank you bella for providing the answer choices.

@krystianna

think about what the average rate of change means in this context. average rate of change = 8 ----> the temperature increases by 8 every unit of t.

between t = 3 and t = 7, there are 4 units of t (7 - 3 = 4)

so if the rate of change is 8 units per 1 unit of t, and there are 4 units of t, then what's the total temperature change?