Are the lines parallel and how did I come to this conclusion?

Question

y + x = -5 and y - x = -5

first I it so y is by itself

y = -x -5

second equation = y = x +5

Would the answer be yes?

y= -5 and y = 5?

Not sure I really understand thx.

Answer 1

The slope of an equation
y=mx+c is equal to m.
Therefore the slope of
y = -x -5 is -1, and the slope of
y = x +5 is +1.

Two parallel lines MUST have the same slope, and vice versa. So what is your conclusion, and why?

Answer 2

I would say that the lines are NOT parallel and are perpendicular. The y intercept for the first equation is 0, -5 and the second is 0 + 5