1. **State the problem:** Given the function $P(x) = x(x - 3)(x + 2)$, find the y-intercept, the x-intercepts, and the end behavior as $x \to \infty$ and $x \to -\infty$.
2. **Find the y-intercept:** The y-intercept occurs when $x=0$.
$$P(0) = 0 \times (0 - 3) \times (0 + 2) = 0$$
So, the y-intercept is $0$.
3. **Find the x-intercepts:** The x-intercepts occur when $P(x) = 0$.
Set each factor equal to zero:
$$x = 0$$
$$x - 3 = 0 \implies x = 3$$
$$x + 2 = 0 \implies x = -2$$
Ordering them from smallest to largest:
$$x_1 = -2, \quad x_2 = 0, \quad x_3 = 3$$
4. **Determine end behavior:** The function is a cubic polynomial with leading term obtained by multiplying the leading terms of each factor:
$$x \times x \times x = x^3$$
Since the leading coefficient is positive (1), as $x \to \infty$, $P(x) \to \infty$ (positive infinity).
As $x \to -\infty$, since the degree is odd and leading coefficient positive, $P(x) \to -\infty$ (negative infinity).
**Final answers:**
- y-intercept: $0$
- x-intercepts: $x_1 = -2$, $x_2 = 0$, $x_3 = 3$
- As $x \to \infty$, $y \to +\infty$
- As $x \to -\infty$, $y \to -\infty$
Polynomial Intercepts E18980
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