Question

WILL GIVE BRAINLIEST

Identify the sequence as arithmetic, geometric,both, or neither.
7,9,11,13

2.Identify the sequence as arithemtic,geometric,both, or neither.
2,1, 1/2, 1/4

Answer 1

The first sequence is arithmetic because we are adding 2 each time to get the next term (eg: from 11 to 13 is +2). The common difference is d = 2. Another way to find the common difference is to subtract adjacent terms. Eg: d = 13-11 = 2

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The second sequence is geometric. The common ratio is r = 1/2. Each time we multiply the current term by 1/2 to get the next term. We can see this by dividing any term but the first term over its previous term
Eg: 1/4 divided by 1/2 = (1/4)*(2/1) = 2/4 = 1/2

Answer 2

7, 9, 11, 13 is an arithmetic sequence because the direct variation is constant. The constant of variation is 2.   7 + 2 = 9; 9 + 2 = 11; 11 + 2 = 13.

2, 1, 1/2, 1/4 is neither

Hope that helps and please give me brainliest!!!