What is the equation of the line given that the slope is 2 and it is going through the point (6, -8)?

y = 2x - 20

Step-by-step explanation:

equation: y = mx + b

plug in slope

y = (2)x + b

plug in (x, y)

-8 = 2(6) + b

multiply

-8 = 12 + b

subtract

-20 = b

plug in b

y = 2x - 20

Step-by-step explanation:

y = mx + b

m = 2   ⇒   y = 2x + b

The line goes through P so:  

-8 = 2(6) + b

-8 = 12 + b

b = -20

y = 2x - 20

2x - y - 20 = 0