What is the area of the triangle formed by the line 3x-4y-12 = 0 and the two axes?

What is the area of the triangle formed by the line 3x-4y-12 = 0 and the two axes?

y=3/4x-3
Intersection X-axis (4,0)
Intersection Y-axis (0, - 3)
4*3*1/2=6