is this parallel, perpendicular, or neither ?

Question

y= -2/5x+3

y=2/5x+8

Answer 1

What is parallel lines? What is perpendicular lines?

Parallel lines are two lines that never intersect each other.

Perpendicular lines are two lines that intersect at a 90 degrees angle.

How to identify if a graph parallel or perpendicular by seeing the graph equations?

Graph equations:

y₁ = a₁x + c₁

y₂ = a₂x + c₂

If a₁ = a₂ AND c₁ ≠ c₂ then there will be two parallel lines.

If a₂ = -1/a₁ or a₁ = -1/a₂ then there will be two perpendicular graphs.

On the question, a₁ = -a₂

So the answer is that it is neither parallel or perpendicular graphs.