The line equation in slope-intercept form is y=mx+b
You have one line with a y-intercept at 1 and a slope of -3 -> y=-3x+1
and another with a y-intercept at -1 and a slope of
-> ![y=\frac{1}{2}x-1](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B1%7D%7B2%7Dx-1)
The area marked is below the first line and above the second one -> replace = with < and >:
y<-3x+1
![y>\frac{1}{2}x-1](https://tex.z-dn.net/?f=y%3E%5Cfrac%7B1%7D%7B2%7Dx-1)
Which is the system of linear inequalities shown in the graph
Please (Parentheses)
Excuse (Exponents)
My (Multiplication)
Dear (Divide)
Aunt (Add)
Sally (Subtract)