Let A(x)=xx+7−−−−−√. Answer the following questions.1. Find the interval(s) on which A is increasing.Answer (in interval notation):2. Find the interval(s) on which A is decreasing.Answer (in interval notation):3. Find the local maxima of A. List your answers as points in the form (a,b).Answer (separate by commas):4. Find the local minima of A. List your answers as points in the form (a,b).Answer (separate by commas):5. Find the interval(s) on which A is concave upward.Answer (in interval notation):6. Find the interval(s) on which A is concave downward.Answer (in interval notation):

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