Question

if the graph of polynomial y=x2-1 is drawn at which points the graph will intersect x-axis.

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Answer 1

Sorry friend i can not give the ans. but i can give the method of ans.

First find appro. 4 ans. of equation like ( if the x= 1 then y= 1) .

Now take 4 point of ans. of equation on the graph and joint it.

After this you know what to do .