Philip P. answered 09/12/19
Affordable, Experienced, and Patient Geometry Tutor
When the center of dilation is the origin, you just multiply the x and y coordinates by the scale factor k. That is, for a point A = (x,y) and scale factor k, the image point is A' = (kx,ky)
For your problem A = (-4,6) and k = 4.5. Can you find A'?