Question 491566
y = mx + b
m = 6
y = 6x + b 
.
You know the line goes through (-4,-6), which means,
x = -4
y = -6
.
-6 = 6*(-4) + b
-6 = -24 + b
b = 18
.
y = 6x + 18
.
{{{graph(500,500,-30,30,-30,30, 6*x+18)}}}