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f(-1)=(-1^2)-9=1-9= -8
f(0)=(0^2)-9=0-9= -9
f(1)=(1^2)-9 = 1-9= -8
f(2)=(2^2)-9= 4-9= -5
f(3)=(3^2)-9=9-9= 0
jadi range(-9, -8, -5, 0)