Slope formula is :
y₂-y₁ / x₂-x₁
Our points are : (2, 6) & (-4, -6)
y₂ = -6 ; y₁ = 6 ; x₂ = -4 ; x₁ = 2
So, now that we have our points and values, we simply plug everything into our slope equation.
y₂-y₁/x₂-x₁
-6 - 6/-4 - 2
Simplify.
-12/-6
Simplify.
2
Our slope is 2
~Hope I helped!~