Answer:
Slope=-2
Step-by-step explanation:
Given points
We know that
[tex]\boxed{\sf Slope_{(m)}=\dfrac {y_2-y_1}{x_2-x_1}}[/tex]
[tex]\longrightarrow\sf m=\dfrac {-1-5}{6-3}[/tex]
[tex]\longrightarrow\sf m=\dfrac {-6}{3}[/tex]
[tex]\longrightarrow\sf m=-2 [/tex]