Question

ok im having more trouble with this one problem then i should.
the question states:
Perform the stated transformation on the preimage, ABC. Give the coordinates of the image, A'B'C'.
the coords for ABC are
A:(-1,-3)
B:(1,1)
C:(5,-1)
im supposed to do a rotation of 270 degrees clockwise about the origin

Answer 1

so (x,y) to (-x,-y)

Answer 2

ok so A=(1,3), B=(-1,-1) and c = (-5,1)

Answer 3

yeah

Answer 4

alright cool thanks

Answer 5

Wait...

Answer 6

While the concept is 'pretty much' straightforward, I would like to point out that negating both coordinates is a rotation of *180 degrees* about the origin and not 270.

Answer 7

ok so add another 90 degrees and what do i get

Answer 8

b=(-1,1)
a=(1,-3)
c=(5,1)

Answer 9

I'm sure you have a definite formula for a rotation by 90 degrees...
Think about it.... to rotate by 270 degrees, you can think about it as FIRST rotating by 180 degrees (which you already know how to) and THEN rotating by 90 degrees.

Answer 10

right so it would be similar to this?

Answer 11

sorry @splatter6 @terenzreignz is in fact right; feel free to give him a medal instead hehe

Answer 12

its alright dude you still helped me get there 3/4's of the way

Answer 13

Roughly... yes...

Answer 14

Understandably, this is confusing.
I'd like to first point out that the first transformation, the one by 90 degrees only: