Respuesta :

P1=(-4,5)=(x1,y1)→x1=-4, y1=5
P2=(4,-3)=(x2,y2)→x2=4, y2=-3

If function f is horizontally compressed by a factor of 2:
P1'=(x1/2, y1)=(-4/2, 5)→P1'=(-2,5)
P2'=(x2/2, y2)=(4/2, -3)→P2'=(2, -3)