Question

25 points!!! Find first differences for the sequence in order from a1 to a5. Determine whether or not the series is quadratic or not.
-1, -3, -1, 5, 15

a) 2, 2, 6, 10; not quadratic
b) 2, 2, 6, 10; quadratic
c) -2, 2, 6, 10; not quadratic
d) -2, 2, 6, 10; quadratic

Answer 1

The answer would best be b hope this helps