Asked by pendeja 20

Tell whether the sequence is arithmetic. If the sequence is arithmetic, write a function rule to represent it.
−3, −1, 1, 3,...
Answered by Liv
Are the numbers going up or going down?
How much is it going up by or how much is it going down by?
Answered by oobleck
clearly, a = -3
and d = 2
as always, a_n = a + (n-1)d