Question

How do you find the point of intersection for `3x-y= -4` and `3x-y=0`?

Answer 1

These equations are of parallel lines, with no intersection.

If you try to satisfy both equations with the same values of `x` and `y` then you find:

`-4 = 3x - y = 0`

Explanation:

Both equations have the same coefficients of `x` and `y` but different constant terms. They represent parallel lines:

graph{(3x-y+4)(3x-y) = 0 [-10, 10, -5, 5]}