Answer:
Step-by-step explanation:
Use the coordinates given in the slope formula:
[tex]m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
Our y2 is -9, y1 is -4, x2 is 15 and x1 is 2
[tex]m=\frac{-9-(-4)}{15-2}[/tex]
which simplifies to
[tex]-\frac{5}{13}[/tex]
