Final answer:
The equation of the line with slope 4 passing through the point (0, -9) is 4x - y = -9.
Step-by-step explanation:
The equation of a line with slope (m) equal to 4 and passing through the point (0, -9) can be found using the point-slope equation.
The point-slope equation is given by:
y - y1 = m(x - x1)
Substituting the values of m, x1, and y1 into the equation, we have:
y - (-9) = 4(x - 0)
Simplifying, we get:
y + 9 = 4x
Lastly, rearranging the equation to match the given options, we have:
4x - y = -9
Therefore, the correct option is A) 4x - y = -9.