Respuesta :

apologiabiology
f(2) means when x=2, what is y
assuming each grid is 1 unit
when x=2, y=-1
f(2)=-1

f(1/2) is where y is when x=1/2
that is at y=1
f(1/2)=1

f(-2) is where y is when x=-2
that is at y=2
f(-2)=2