C1 Maths Help!! Plz

The line r passes through the points (-3,0) and (3,-2) and the line s passes through (5,-3) and (20,9). Show that the lines r and s are parallel.

Is this a trick question? I plotted them both and they looked nowhere near parallel! I also worked out there gradients and they were not the same :s

help please, STEP BY STEP!
thanks :]

You could do a variety of things to prove that they are parallel.

Personally, I would find the midpoints of each set of coordinates, so for the first one you have:

$(\frac{-3+3}{2},\frac{0-2}{2})$

You know where to go from there I presume?

there's 2 questions in a row that don't make sense xDxD
The other one:
The line l passes through the points (4,4) and (-1,-6) and the line n passes through the points (1,8) and (-1,2). Show that the lines l and n are perpendicular.

there's 2 questions in a row that don't make sense xDxD
The other one:
The line l passes through the points (4,4) and (-1,-6) and the line n passes through the points (1,8) and (-1,2). Show that the lines l and n are perpendicular.

I am losing the will to live today.

What? Don't expect me to pick up on mistakes straight away... Ok ok I made a mistake I know but seriously...