PLZ HELP ME!!!!!!

Question

Quadrilateral ARMYARMYA, R, M, Y is rotated 90^\circ90∘90, degrees about the origin.

A: 3,3

R: 5,7

M: 7,5

Y: 5,1

Answer 1

Are you rotating 90^o clockwise or counterclockwise?

By convention, it probably means 90^o counterclockwise, so I'll assume that.

See the table below for all the transformations. 90^o counterclockwise says (-y,x). That means you take the original (x,y) and change it to (-y,x)

A: 3,3 becomes (-3,3)

R: 5,7 (-7,5)

M: 7,5 (-5,7)

Y: 5,1 (-1,5)

Transformation	Formula
Translation	(x+a,y+b)
Reflection over y-axis (x=0)	(-x, y)
Reflection over x-axis (y=0)	( x, -y)
Rotation 180o around (0,0)	(-x, -y)
Reflection over y=x (upward diagonal)	( y, x)
Rotation 90o counterclockwise around (0,0)	(-y, x)
Rotation 90o clockwise around (0,0)	(y, -x)
Reflection over y=-x (downward diagonal)	(-y, -x)