Question

M'(-5-4) is the image of M after a 90°
counterclockwise rotation about the origin.
What are the coordinates of M?

Answer 1

Step-by-step explanation:

Let coordinate of M(x, y)

we know,

image of M(x,y)-------M'(-y,x)

From question

(-y,x)= (-5,-4)

or, -y = -5 and x= -4

So, y=5 and x= -4

Therefore M(x,y)=M(-4,5)