Two graphs y = f(x) and y = g(x) are reflections of one another in the y axis if whenever (a, b) is a point on one of the graphs, then (−a, b) is a point on the other, as indicated in the accompanying figure. Use this criterion to show that the graphs of

are reflections of one another in the y axis.

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and y-(1) to b y = b and y for b> 0, b 1