L passes through point (0,-4) and is parallel with the line 3x - y = 6.

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Put the given equation in the slope-intercept form:

3x - y = 6

y = 3x -6

slope = 3

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Any line parallel to the given line has slope = 3.

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For of the equation you want is y = mx + b

m = 3 and y = -4 when x = 0 ; solve for "b":

-4 = 3*0 + b

b = -4

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EQUATION:

y = 3x - 4

b1 is 3

b0 is -4