Question

if the figure above is rotated 270 degrees about the origin of the figure, what is the coordinate of a? (1 point) o (1,1) o (-1,-2) o (2,-1) o (1,2)

Explanation:

Step1: Recall rotation rule

The rule for a 270 - degree counter - clockwise rotation about the origin is $(x,y)\to(y, - x)$.

Step2: Identify coordinates of point A

The coordinates of point A are $(-2,1)$.

Step3: Apply rotation rule

Using the rule $(x,y)\to(y, - x)$ with $x=-2$ and $y = 1$, we get $(1,2)$.

Answer:

D. $(1,2)$