The common ratio of the sequence is -1.5
How to determine the common ratio?
The sequence is given as:
1,-1.5,2.25,-3.375
Divide the second term by the first to determine the common ratio (r)
r = T2/T1
This gives
r = -1.5/1
Evaluate
r = -1.5
Hence, the common ratio of the sequence is -1.5
Read more about common ratio at
https://brainly.com/question/2488421
#SPJ1
