Medium
In an AP, the first term is -8 and the common difference is 1. Which term of the AP is -6?
Explanation
Explanation
Using aₙ = a + (n-1)d, set a + (n-1)d = -6: -8 + (n-1)(1) = -6. Solving, (n-1) = (-6 - -8)/1 = 2, so n = 3. Thus -6 is the 3th term.
PRO TIP
Re-check your working by substituting the answer back into the original question.