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Can you post the "illustrated motion?"

So this is a clockwise rotation about the origin, right?

Sorry, counter-clockwise rotation about the centre of 90 degrees per frame.

counter-clocwise right?

right

Have you done translation matrices?

no... the furthest I've gone is inverted matrices...

So you know how to multiply a matrix?

yes

ok

R=
cos(theta) -sin(theta)
sin(theta) cos(theta)

oh ok

so with this problem...?

and the points matrix would be
x1 x2 x3 x4... xn
y1 y2 y3 y4 ... yn

alright

Each multiplication will rotate Pn by 90 degrees, CCW.

ok I'm a bit lost... how would I write the matrices?

They were both given earlier, R, and Pn.
The multiplication is only RRRRP

oooh! alright I see. so how would the finished problem look?

Do you find the matrices? I did not format them.

yes I see, where you said the points matrix, and R

(sorry for the sloppy formatting)

ok... the formatting is a little hard to follow but I think I get it...

so is that the answer to my problem?

Not yet, you need to create Pn to represent the 4 points, then you can do the rotations.

better formatting like this?

you have been soooo extremely helpful I wish i could thank you more!

can you show me what the matrix would look like?

I'm sorry I'm not very smart :(

|dw:1433211807693:dw|
Dont understimate yourself! :)

oh boy... I'm lost :( can you show me the next one so I can see the changes?

0 -2 ...
-1 -3...
for all 4 points

I'm just going to leave it like that and get half credit, thank you for your help.

Sorry! :(