the inequality is:
[tex]-6\ge3p+9[/tex]So we can solve the inequation for p so:
[tex]\begin{gathered} -9-6\ge3p \\ -15\ge3p \\ -\frac{15}{3}\ge p \\ -5\ge p \end{gathered}[/tex]so the solution are all numbers equal or lower than -5 so the graph will be:
and in the number line will be: