The equation for slope is \(\frac{rise}{run}\) . This is the same as m=\(\frac{y2-y1}{x2-x1}\) . Also, it doesn't matter which set of coordinates is (x1,y1) and (x2,y2).
Now we can just plug in the numbers to find out the slope.
\(\frac{9-0}{4-3}\)
= \(\frac{9}{1}\)
=9
The slope is 9.