1. **Stating the problem:**
We need to solve the system of inequalities:
$$y > x^2$$
and
$$y < -x^2 + 1$$
using graphing and one indicator point.
2. **Understanding the inequalities:**
- The first inequality $$y > x^2$$ means the solution region is above the parabola $$y = x^2$$.
- The second inequality $$y < -x^2 + 1$$ means the solution region is below the parabola $$y = -x^2 + 1$$.
3. **Graphing the boundary curves:**
- Plot $$y = x^2$$, a parabola opening upwards.
- Plot $$y = -x^2 + 1$$, a parabola opening downwards with vertex at $$(0,1)$$.
4. **Finding the intersection points:**
Set $$x^2 = -x^2 + 1$$ to find where the parabolas meet:
$$x^2 + x^2 = 1$$
$$2x^2 = 1$$
$$x^2 = \frac{1}{2}$$
$$x = \pm \frac{1}{\sqrt{2}}$$
5. **Choosing an indicator point:**
Pick a point between the intersection points, for example, the origin $$(0,0)$$.
6. **Testing the indicator point:**
- Check if $$0 > 0^2$$ i.e. $$0 > 0$$ (False)
- Check if $$0 < -0^2 + 1$$ i.e. $$0 < 1$$ (True)
Since the first inequality is false at $$(0,0)$$, this point is not in the solution region.
7. **Conclusion:**
The solution region is the set of points above $$y = x^2$$ and below $$y = -x^2 + 1$$, between $$x = -\frac{1}{\sqrt{2}}$$ and $$x = \frac{1}{\sqrt{2}}$$.
**Final answer:**
$$\{(x,y) \mid x \in \left(-\frac{1}{\sqrt{2}}, \frac{1}{\sqrt{2}}\right), x^2 < y < -x^2 + 1\}$$
Inequality Graph 02650E
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