What is the equation of a line that passes through the point (0, -2) and has a slope of -3? y = -3 y = -3x - 2 y = -2x - 3 y = -2

The general equation of a line is y = mx +b. 
m is equal to the slope, so for this problem it is m = -3 
b is equal to the y-intercept (the y-point when x = 0) so according to this since it passes through (0, -2), x=0 at y = -2 
The equation of the line is: y = -3x - 2