Question

If the sequence is geometric, what is its common ratio? 4, 8, 12, 16, ..

Answer 1

is it +4 every time

Answer 2

an = 4n

Answer 3

the common ratio is found by comparing terms

\[\frac{T_{2}}{T_{1}} = \frac{T_{3}}{T_{2}} = \frac{T_{4}}{T_{3}} ...\]

if the sequence is geometric the cammon ratio should be 4 on every occassion

Answer 4

yes it's +4 each time, so does that make it a geometric sequence?