Question

f:(-4,-3,-2,-1,0,1,2)-> R , f(x)= -x+1,x<1 si x+2 ; x>1

Answer 1

f(-4) = -4+1 = -3
f(-3) = -3+1 = -2
f(-2)= -2+1=-1
f(-1) = -1 +1 =0
f(0) = 0+2 =2
f(1) = 1+2 =3 
f(2) = 2+2 =4

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