Question

Which sequence is ARITHMETIC?

{0, 1, 4, 9...}
{0,4,7,11,...}
{-3, 2, 7, 12,...}
D)
{2, 1, 0.5, 0.25, ...)

Answer 1

{0, 1, 4, 9...}

Explanation:

For every next number you are adding the next odd number.

0

0+1=1

1+3=4

4+5=9