Determine whether the sequence is arithmetic.If so,find the common difference. ?
7, $\frac { 13 } { 2 }$ ,6, $\frac { 11 } { 2 }$ ,5,...
?
A)Arithmetic sequence,d = -1
B)Arithmetic sequence, $d = \frac { 3 } { 2 }$
C)Arithmetic sequence, $d = - \frac { 1 } { 2 }$
D)Arithmetic sequence,d = -2
E)Not an arithmetic sequence

Question

Quizplus · Accepted Answer

The sequence is arithmetic with a common difference of $- \frac { 1 } { 2 }$. This can be determined by subtracting any term from the term that follows it, for example, $\frac { 13 } { 2 } - 7 = - \frac { 1 } { 2 }$ and $6 - \frac { 13 } { 2 } = - \frac { 1 } { 2 }$.

Determine Whether the Sequence Is Arithmetic 132\frac { 13 } { 2 }213​

Determine Whether the Sequence Is Arithmetic $\frac { 13 } { 2 }$