[Steps Shown] Answer the questions below. You do not need to show work. A family of functions is given by r(x)=(1)/(x^2-2 a x+16) For what value(s) of a


Question: Answer the questions below. You do not need to show work. A family of functions is given by

\[r(x)=\frac{1}{x^{2}-2 a x+16}\]
  1. For what value(s) of \(a\) does the graph of \(r(x)\) have exactly one vertical asymptote? Where is the vertical asymptote in this case?
  2. For what value(s) of \(a\) does the graph of \(r(x)\) have two vertical asymptotes? Where are the vertical asymptotes in this case?
  3. Find the value(s) of \(a\) so that the function \(r\) has a local maximum at the point \(x=3 .\)
  4. Sketch the graphs of \(r\) for the parameters \(a=4\) and \(a=5\) in the coordinate systems below.

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