Answer:
-3 + (n-1)(-4)
Step-by-step explanation:
We follow the formula.
a1 + (n-1)d
d is the common difference.
Answer:
-4n + 1
Step-by-step explanation:
-3, - 7, -11 , -15 ,-19 ,.........
[tex]a_{1} = -3\\\\[/tex]
Common difference (d) = 2nd term - first term
d = -7 -(-3)
= -7 + 3
d = -4
[tex]a_{n} =a + (n-1)d\\\\a_{n} = -3 + (n - 1)(-4)[/tex]
= -3 + n *(-4) - 1*(-4)
= -3 - 4n + 4
= -4n + 1
