Q.

Which of the following is the graph of the curve |y|=x is

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Ans.

(2)

g(x)=1f(|x|)        g(x)⇒even function⇒symmetric about y-axis

⇒ x→∞, f(x)→0 at x=x1, f(x)=0⇒g(x1)→∞