Question

Emie is recording her test grades based on the number of hours she spent studying for each test. The table shows the time she spent studying and the test grade she earned.
Hours Spent Studying | Test Grade
0 | 34
2 | 50
4 | 66
6 | 82
8 | 98
What was the average rate of change of the test grade as the amount of hours she spent studying went from 0 hours to 8 hours?
A. 8
B. 16
C. 4
D. 34

Answer 1

(f(8)-f(0))/(8-0) = (98-34)/8 = 8