Rational Functions

  1. Find the value(s) of \(x\) that satisfy each of the following equations.
    \[x=\frac{3x+77}{x}-7\]
    \[\frac{x^3-2x}{x+2}=\frac{10x}{x+2}-11x\]
    \[x^2=\frac{6}{x^2+1}\]
    \[\frac{x(x-3)(x+3)}{16-x}=9\]
  2. Without the aid of technology, roughly sketch the graph of the following rational function on the axes below. Don’t worry too much about the vertical scaling. \[ a(x) = \frac{(x+5)(x-8)}{x-3} \]
  3. Without the aid of technology, roughly sketch the graph of the following rational function on the axes below. Don’t worry too much about the vertical scaling. \[ b(x) = \frac{(x+5)^2(x-8)^3}{(x-3)^4} \]
  4. Without the aid of technology, roughly sketch the graph of the following rational function on the axes below. Don’t worry too much about the vertical scaling. \[ c(x) = \frac{(x+2)(x+5)(x+10)}{x(x+7)} \]
  5. Without the aid of technology, roughly sketch the graph of the following rational function on the axes below. Don’t worry too much about the vertical scaling. \[ d(x) = \frac{(x+2)(x+5)^2(x+10)^4}{x^6(x+7)^2} \]
  6. Without the aid of technology, roughly sketch the graph of the following rational function on the axes below. Don’t worry too much about the vertical scaling. \[ f(x) = \frac{x}{(x-9)(x+3)(x+9)} \]
  7. Without the aid of technology, roughly sketch the graph of the following rational function on the axes below. Don’t worry too much about the vertical scaling. \[ g(x) = \frac{x^2}{(x-9)^2(x+3)^3(x+9)} \]