Question

Find the common radio of the sequence. -4,8,-16,32,

Answer 1

The common ratio is -2. Try dividing the second term by the first, the third by the second, the fourth by the third etc... and you'll see they all equal to -2.

e.g.:

8 / -4 = -2
-16 / 8 = -2
32 / -16 = -2