The ninth and tenth terms of an arithmetic sequence are 1/4 and -1/3, respectively. What is the second term?
The common difference is -1/3 - 1/4 = -7/12
We need to evaluate this
-1/3 + (7/12) ( 10 - 2)
-1/3 + (7/12) ( 8)
-1/3 + 56/12
-1/3 + 14/3 =
13 / 3 = the second term