Answer:
Slope, m=3
Explanation:
The slope-intercept form of the equation of a line is given as:
[tex]\begin{gathered} y=mx+b \\ m=\text{slope} \end{gathered}[/tex]Comparing the equation: y=3x+9 with the form given above, we have that:
[tex]\text{Slope, m=3}[/tex]The slope of the line is 3.