Question

Why is -12.3,-9.7,-7.1,-4.5 an arithmetic sequence

Answer 1

Explanation:

arithmetic sequence is a sequence , if difference between any two consecutive terms is same for all.

difference of first two terms: -9.7-(-12.3)=2.6

difference of third and seconf term: -7.1-(-9.7)=2.6

and so o, as difference between any of the consecutive terms is same i.e 2.6, the given sequence is arithmetic.