Transformation rotation B(-3,4)?

Question

Name the coordinates of B' if B(-3,4) is rotated:
90 degrees about (-1,-2)
and 180 degrees about (3,3)
and please can you explain why it is to me?
im not understanding any of this

and another question is
find the coordinates of the image of TRIANGLE DFG where D(5,-2), F(2,4), G(-3,1) under a glide reflection of <-2,3> and x= -1

provide answer and explanation for me please

Answer 1

Imagine yourself standing at the point (-1, -2) facing point B (i.e. (-3,4). Continue by imagining yourself holding a stick straight out in front, just long enough to reach point B, so that the end of the stick is just above point B.

Now turn counter-clockwise 90 degrees. The end of the stick is now over a different point. Call that point C. Compute its coordinates.

Now move to point (3,3) and face point C. Hold a stick out in front of view just long enough to reach point C. Now turn counter-clockwise 180 degrees. The end of the stick is above a different point, call it D.

What are the coordinates of D? (D corresponds to B')

Now you should understand, at very least, what you are trying to do.