For the following arithmetic progressions write the first term a and the common difference d :
(i)
(ii)
(iii)
(iv)
(i)
First term, a = -5
Common difference, d = -1 – (-5)
= -1 + 5 = 4
First term, a =
Common difference, d = -
=
First term, a = 0.3
Common difference, d = 0.55 – 0.30 = 0.25
First term, a = -1.1
Common difference, d = -3.1 – (-1.1)
= -2