You can put this solution on YOUR website! x^2-2
------- for x= -1 and x= 3
x^2-9
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f(-1)=(1^2-2)/(1^2-9)
f(-1)=(1-2)/(1-9)
f(-1)=-1/-8 =1/8 answer.
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f(3)=(3^2-2)/(3^2-9)
f(3)=(9-2)/(9-9)
f(3)=7/0=(infinity) answer.