Since A‘(-1,1) is on the line y=-x, reflecting it about the line doesn't change its coordinate, so A's coordinate is (-1,1). Reflecting B'(-2,1) about y=-x switches both the sign and the number of x and y, so B=(-1,2), and C'(-1,0) becomes C(0,1). Drawing out the graph with the points and the line helps.
No, because the 9 pounds would cost 22.5, and that is 5 cents more than he has
the answer for this would be the last one. two rays that meet at a end point.
hope this helps!
Answer:
the length of each side of the square are 6 cm
