Need hep on this math question please

Question

Examine the following graph, where  is the preimage and  is the image after a transformation.

© 2018 StrongMind. Created using GeoGebra.

 Which function correctly describes the transformation?

I(x)=P(x)+4

I(x)=P(x−4)

I(x)=P(x+4)

I(x)=P(x)−4

Answer 1

I(x)=P(x)+4, shifted up

I(x)=P(x−4), shifted right

I(x)=P(x+4), shifted left

I(x)=P(x)−4, shifted down