Answer:
2.5
Step-by-step explanation:
[tex]slope = \frac{rise}{run} = \frac{ {y}^{2} - {y}^{1} }{ {x}^{2} - {x}^{1} } [/tex]
Here x(1) = - 4 ; y(1) = 5
x(2) = - 8 ; y(2) = -5
So,
[tex]slope = \frac{ - 5 - 5}{ - 8 - ( - 4)} = \frac{ - 10}{ - 4} = \frac{5}{2} = 2.5[/tex]