Question

help please! match the sequence (term) with the correct type of sequence (definition). term definition 2, 4, 6, 8, ... a. arithmetic, common difference is -4 28, 24, 20, 16, ... b. geometric, common ratio is 2 2, 4, 8, 16, ... c. arithmetic, common difference is 2 48, 24, 12, 6, ... d. geometric, common ratio is 0.5

Answer 1

In an arithmetic sequence common difference will be constant. Common difference is the difference of next term to it's previous term. Like

common difference: d = Second term - first term.

Similarly in geometric sequence common ratio will be constant.

Common ratio = Second term / first term.

I have attached the table of correct match pair.

Hope this helps you!