10.0
Explanation
an arithmetic sequence is given by the expression
[tex]\begin{gathered} a_n=a_1+(n-1)d \\ \text{where} \\ a_{_1}\text{ is the first term} \\ \text{and d is the common diference} \end{gathered}[/tex]
in the graph , to know the value of the 7 th terms, we need to take the value that y takes, when x= 7
so
therefore, the answer is
10.0
I hope this helps you
