Graph Rational B1Ea82
1. **State the problem:** We need to graph the rational function $$R(x) = \frac{x + 6}{x(x + 12)}$$.
2. **Identify intercepts:**
- **x-intercepts:** Set numerator equal to zero: $$x + 6 = 0 \Rightarrow x = -6$$.
- **y-intercept:** Set $$x=0$$, but denominator is zero at $$x=0$$, so no y-intercept.
3. **Find vertical asymptotes:** Set denominator equal to zero:
$$x(x + 12) = 0 \Rightarrow x=0 \text{ or } x=-12$$.
These are vertical asymptotes.
4. **Find horizontal asymptote:** Degree of numerator is 1, degree of denominator is 2, so horizontal asymptote is $$y=0$$.
5. **Analyze behavior near asymptotes:**
- As $$x \to 0^+$$, denominator $$\to 0^+$$, numerator $$\to 6$$, so $$R(x) \to +\infty$$.
- As $$x \to 0^-$$, denominator $$\to 0^-$$, numerator $$\to 6$$, so $$R(x) \to -\infty$$.
- As $$x \to -12^+$$, denominator $$\to 0^-$$, numerator $$\to -6$$, so $$R(x) \to +\infty$$.
- As $$x \to -12^-$$, denominator $$\to 0^+$$, numerator $$\to -6$$, so $$R(x) \to -\infty$$.
6. **Summary:**
- Vertical asymptotes at $$x=0$$ and $$x=-12$$.
- x-intercept at $$x=-6$$.
- Horizontal asymptote at $$y=0$$.
- Behavior near asymptotes as above.
7. **Graphing:** Plot vertical lines at $$x=0$$ and $$x=-12$$.
Plot point at $$(-6,0)$$.
Draw curve approaching asymptotes and intercepts respecting the behavior.
Final answer: The graph of $$R(x) = \frac{x + 6}{x(x + 12)}$$ has vertical asymptotes at $$x=0$$ and $$x=-12$$, an x-intercept at $$x=-6$$, and a horizontal asymptote at $$y=0$$, with the described behavior near asymptotes.