Question

1 14 แ li ! 14 badute Value ineguanten NM แจls แทนเจ 1 ปี 58 หมอยอด | |44| |14 นางอ 24.122 (Mitr 5.1 \\\\\ย - 5 \\

Answer 1

`\begin{gathered} 2|10b\text -1 >73 \\ 2|10b\text +7 \\ 2|10b\text >\text{ 74} \end{gathered}`
`\begin{gathered} |10b+7|>(74)/(2)\text{ } \\ |10b\text>37 \end{gathered}`

This implies that

`\begin{gathered} 10b\text{ +7 }>\text{ 37} \\ or \\ 10b\text{ +7 <-37} \end{gathered}`
`\begin{gathered} \text{if 10b + 7>37} \\ \text{then 10b >37-7} \\ 10b\text{ >30} \\ b\text{ >}(30)/(10) \\ b\text{ >3} \end{gathered}`
`\begin{gathered} \text{if 10b + 7<-37} \\ 10b\text{ <-37-7} \\ 10b<-44 \\ b<(-44)/(10) \\ b<-4.4 \end{gathered}`

Combining them we have

-4.4

Now to the graph