Question

the figure below has a point marked with a large dot.first rotate the figure 90 degrees counterclockwise about the origin.then give the coordinates of the Mark point in the original figure in the final figure.

Answer 1

When we do a 90 degree counterclockwise rotation about the origin, a point moves from ( x,y) to ( -y,x)

Using the point with the blue dot

It is originally at (2,-3)

It will move to (3,2)