Answer:
[tex]2.[/tex]
Step-by-step explanation:
[tex]i \: believe \:that \: the \: required \: value \: is \: the \: \boxed{slope} \\ the \: slope \: is :m = \frac{9 - 5}{3 - 1} = \frac{13 - 9}{ 5- 3} = \frac{17 - 13}{7 - 2} = \frac{4}{2} \\ m = \boxed{ 2.}[/tex]
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