a. the line containing P(-9, -5) and parallel to the x axis.
If two lines are parallel, then:
[tex]m1=m2[/tex]The slope for the x-axis is:
[tex]m1=0[/tex]so:
[tex]m1=m2=0[/tex]Using the point-slope equation:
[tex]\begin{gathered} y-y1=m2(x-x1) \\ where \\ (x1,y1)=(-9,-5) \\ y-(-5)=0(x-(-9)) \\ y+5=0(x+9) \\ y+5=0 \\ y=-5 \end{gathered}[/tex]