1. **State the problem:** Find the area of the region bounded by the curve $x = 2 - y^2$ and the y-axis.
2. **Understand the boundaries:** The curve is $x = 2 - y^2$, a parabola opening leftwards with vertex at $(2,0)$. The y-axis is $x=0$.
3. **Find intersection points:** Set $x=0$ to find $y$ where the curve meets the y-axis:
$$0 = 2 - y^2 \implies y^2 = 2 \implies y = \pm \sqrt{2}$$
4. **Set up the integral:** The area between the curve and y-axis is the integral of $x$ from $y = -\sqrt{2}$ to $y = \sqrt{2}$:
$$\text{Area} = \int_{-\sqrt{2}}^{\sqrt{2}} (2 - y^2) \, dy$$
5. **Calculate the integral:**
$$\int (2 - y^2) \, dy = 2y - \frac{y^3}{3} + C$$
Evaluate from $-\sqrt{2}$ to $\sqrt{2}$:
$$\left[2y - \frac{y^3}{3}\right]_{-\sqrt{2}}^{\sqrt{2}} = \left(2\sqrt{2} - \frac{(\sqrt{2})^3}{3}\right) - \left(-2\sqrt{2} + \frac{(-\sqrt{2})^3}{3}\right)$$
6. **Simplify:**
$$(\sqrt{2})^3 = \sqrt{2} \times \sqrt{2} \times \sqrt{2} = 2\sqrt{2}$$
So,
$$= \left(2\sqrt{2} - \frac{2\sqrt{2}}{3}\right) - \left(-2\sqrt{2} - \frac{2\sqrt{2}}{3}\right) = \left(2\sqrt{2} - \frac{2\sqrt{2}}{3}\right) + \left(2\sqrt{2} + \frac{2\sqrt{2}}{3}\right)$$
$$= 2\sqrt{2} + 2\sqrt{2} - \frac{2\sqrt{2}}{3} + \frac{2\sqrt{2}}{3} = 4\sqrt{2}$$
7. **Final answer:** The area is $4\sqrt{2}$ square units.
**Note:** The options are fractions with denominators 3, so rewrite $4\sqrt{2}$ as $\frac{12\sqrt{2}}{3}$, which is not listed. Re-examining step 6 carefully:
$$\left(2\sqrt{2} - \frac{2\sqrt{2}}{3}\right) - \left(-2\sqrt{2} + \frac{-2\sqrt{2}}{3}\right) = \left(2\sqrt{2} - \frac{2\sqrt{2}}{3}\right) + \left(2\sqrt{2} - \frac{2\sqrt{2}}{3}\right) = 4\sqrt{2} - \frac{4\sqrt{2}}{3} = \frac{12\sqrt{2} - 4\sqrt{2}}{3} = \frac{8\sqrt{2}}{3}$$
So the correct area is $\frac{8\sqrt{2}}{3}$ square units.
**Answer: (c) $\frac{8\sqrt{2}}{3}$**
Area Parabola Yaxis Fc9C5F
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