Answer:
The equation of the line would be y = 3x + 9
Step-by-step explanation:
In order to solve this, start by finding the slope of the original line. You can do this by solving for y.
x - 3y = 3
-3y = -x + 3
y = 1/3x - 1
Now that we have a slope of 1/3, we know that the perpendicular slope is -3 (since perpendicular lines have opposite and reciprocal slopes). We can use this and the new point in point-slope form to find the equation.
y - y1 = m(x - x1)
y - 0 = 3(x + 3)
y = 3x + 9