Question 339541
Use the point-slope formula.

y - y1 = m(x - x1)

Let m = slope

So, m = -2

Let y1 = 6

Let x1 = -4

y - 6 = -2(x -(-4))

y - 6 = -2(x + 4)

y - 6 = -2x - 8

y = -2x - 8 + 6

y = -2x - 2

Did you follow?