Answer:
The same line.
Explanation:
We have to decide whether the lines are perpendicular, neither parallel nor perpendicular, parallel, or the same line. We can check if a line is perpendicular by finding the slope. The line is perpendicular if the slope of one line is the negative reciprocal of the second line.
Let's try to solve for the Y-intercept (where X = 0) of both of these functions.
y + 3x = -4
y + 3(0) = -4
y + 0 = -4
:. y = -4
And now the other one:
y = -3x-4
y = -3(0) - 4
:. y = -4
Since y = -4 in both cases, well, now we have our answer. The answer is it's the same line, so the fourth answer is correct. All the other ones - perpendicular, neither parallel nor perpendicular, and parallel - are incorrect by process of elimination. We don't actually have to keep going from here. But we can (although I won't).