Question

Figure ABCD is a trapezoid with point A (0, -4). What rule would rotate the figure 270° clockwise, and what coordinate would be the output for point A'?

(x,y)→(y,-x); A' (-4, 0)

(x,y)→(-y,x); A' (4, 0)

(x,y)→(y,x); A' (-4, 0)

(x,y)→(-y,-x); A' (4, 0)

Answer 1

Well, rotating a figure 270 degrees clockwise is the exact same thing as rotating it 90 degrees counter clockwise so we have to use: x, y --> -y, x

Answer 2

So, we have our rule, but what would (o, -4) convert to?

Answer 3

(0, 4)*

Answer 4

Ok, we have to flip x and y and make 4 the opposite integer so, it goes from negative to positive. Now what do we have?