Please help solve with steps, thank you.

Question

Find y if the slope between (-8,y) and (-12,-8) is three

Answer 1

m = (y₂ - y₁) / (x₂ - x₁)

 

3 = (-8 - y) / (-12 + 8)

 

3 = (8 + y) / 4

 

12 = 8 + y 

 

y = 4