Respuesta :
for example!:
f(1)=1
f(-1)=1
f(2)=2
f(-2)=2
f(-x)=x
f(x)=x
so the diagram is like the picture I send.
f(1)=1
f(-1)=1
f(2)=2
f(-2)=2
f(-x)=x
f(x)=x
so the diagram is like the picture I send.
