1. **State the problem:** We need to analyze the function given by $$y = \frac{3 - x}{x + 2}$$.
2. **Formula and rules:** This is a rational function where the numerator is $3 - x$ and the denominator is $x + 2$.
- The function is undefined where the denominator is zero, so find $x$ such that $x + 2 = 0$.
3. **Find domain restrictions:**
$$x + 2 = 0 \implies x = -2$$
So, $x = -2$ is not in the domain.
4. **Find intercepts:**
- **y-intercept:** Set $x=0$:
$$y = \frac{3 - 0}{0 + 2} = \frac{3}{2} = 1.5$$
- **x-intercept:** Set $y=0$ which means numerator $3 - x = 0$:
$$3 - x = 0 \implies x = 3$$
5. **Summary:**
- Domain: all real numbers except $x = -2$
- x-intercept at $(3, 0)$
- y-intercept at $(0, 1.5)$
This function can be graphed as a hyperbola with a vertical asymptote at $x = -2$.
Rational Function 250B88
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